KR20200134478A - Air Quality Management System and Control Program Using Network - Google Patents

Abstract

The present invention relates to a technology which allows a plurality of measuring devices and an air purification device to be integrally controlled and managed through a network and a centralized server. To this end, the present invention comprises: an independent measurement unit having a plurality of air quality measurement sensors and a communication module with a Wi-Fi function; a server unit which compares data transmitted by the measurement unit to a predetermined air quality maintenance plan in real time for determination, thereby automatically providing an operation command to various air quality improvement devices; an independent driving unit which mechanically and physically performs the function of removing contaminants from the air after receiving the command of the server unit; and an independent display and control unit such as a smartphone, a personal computer and the like, which establishes the air quality maintenance plan to transmit the same to the server, displays the transmitted measurement value in real time, or has a software installed therein to directly control the driving unit. Therefore, a plurality of devices can be easily added, integrated and replaced, thereby enabling large-scale air quality measurement in a building or a region, and enabling effective response.

Description

Air Quality Management System and Control Program Using Network

The present invention is transmitted from a'measurement unit' and a'measurement unit' having a function of converting a plurality of air quality measurement sensors and measured air quality information into data and transmitting them to a cloud server through a communication module (WIFI, LTE, etc.) Receives an air quality data and compares the received data with a pre-input air quality maintenance plan in real time, and receives commands from the'server unit' and'server unit' that give driving commands to various air quality improvement devices. Air quality maintenance plan, collectively referred to as various air quality improvement devices such as a filter-type fine dust collector, which is responsible for the removal function of the filter, and a dioxygen generator, an ozone reducer, and an ultraviolet sterilizer, is established and transmitted to the server or transmitted measurement values. Smart phones, PCs, etc., including software that can display real-time and directly control the'drive unit', are composed of'display and control units', which enable continuous, automatic, and economical air quality measurement and control in buildings or regions. It relates to a network air quality management system.

In general, various air purifiers are used to purify the air so that we can safely inhale indoor air, or by sterilizing contaminated air by photocatalyst, negative ions, ultraviolet rays, plasma, etc. The method is disclosed.

However, conventional air purifiers use filters to collect dust in the air or to deodorize odors by using adsorptive active materials such as activated carbon filters. Bacteria and the like have defects that cannot be sterilized at the source.

As shown in Table 1 below, the Indoor Air Quality Management Act (Ministry of Environment), Public Hygiene Management Act (Ministry of Health, Welfare and Family), Industrial Safety and Health Act (Ministry of Labor), School Health Act (Ministry of Education, Science and Technology), Parking Lot Act (Ministry of Land, Transport and Maritime Affairs) For various measurement items in the indoor air quality management guidelines, it can be seen that there are many substances that cannot be measured with sensors attached to existing air purifiers or that cannot be purified through filters.

Item Ministry of Environment Ministry of Health and Welfare Ministry of Labor Ministry of Education Ministry of Land, Transport and Maritime Affairs Whether filter type purification is possible Applicable target Multi-use facility
(History, childcare facilities, etc.) Public facilities
(Academy, performance hall, business facilities, etc.) Office,workshop school parking lot
(2,000㎡ or less) - Ground law Indoor air quality management method for multi-use facilities, etc. Public Health Management Act Occupational Safety and Health Act School Health Act Parking lot law - Management method Self-measurement, facility manager education,
Installation of ventilation facilities, measurement and announcement of indoor air quality in new apartment houses Air purification facility replacement. cleaning Air quality measurement,
Ventilation facility operation, etc. Appropriate measures such as regular inspection and ventilation equipment installation Installation of appropriate ventilation equipment - Metric 10 things 4 9 pieces 12 pieces One - Fine dust (㎍/㎡) 100~200 150 150 100 - possible CO (ppm) 10-25 25 10 10 25 Impossible CO₂(ppm) 1,000 1,000 1,000 1,000 - Impossible NO₂(ppm) 0.05~0.3 - 0.05 0.05 - Impossible Formaldehyde (㎍/㎡) 100 120 120 100 - Partly possible Total suspended bacteria (CFU/㎡) 800 - 800 800 - Partly possible Radon (pCi/L) 4 - - 4 - Impossible Organic compound (㎍/㎡) 400~1,000 - 500 400 - Impossible Asbestos (pcs/cc) 0.01 - 0.01 0.01 - possible Ozone (ppm) 0.06~0.08 - 0.06 0.06 - Impossible Tick (mari/㎡) - - - 100 - Partly possible Falling bacteria (CFU/room) - - - 10 - Partly possible

Typically, bacteria or bacteria that cannot be removed through a filter, or organic substances that cause various odors, are removed using a chemical reaction, a photocatalyst, plasma, or ultraviolet rays.

For example, odor-causing substances such as methyl mercaptan (CH₃SH), methyl disulfide methyl sulfide [(CH₂)₂S], hydrogen sulfide (H₂S), ammonia (NH₃), ethylamine (CH₃CH₂NH₂), methylamine (CH₃NH₂), trimethylamine In the case of [(CH₃)₃N] and acetaldehyde (CH₃CHO), the filtering effect by the filter is small, but it is known that it can remove up to 99% by reacting with chlorine dioxide (CLO₂) gas. Staphylococcus aureus and Listera bacteria , Vibrio bacteria, pathogenic Escherichia coli, Salmonella, Shikella, Pseudomonas aeruginosa, super bacteria, and other bacteria and viruses are known to be able to remove 99% by exposure to ultraviolet rays.

As such, it is desirable to use a different removal method for substances that are difficult to remove or have a weak removal effect by passing air through the filter to collect harmful substances, but in reality, the desired purpose is achieved by upgrading the existing air purifier. There is something difficult to do.

Also, from the standpoint of existing air purifier producers, although it is technically possible to integrate sensors capable of various measurements in one air purifier and all methods of removing harmful substances measured through them in one device, the price according to the increase in production price There will be concerns that competitiveness will weaken, and there is a problem in that consumers do not choose expensive devices because they are equipped with a method for removing substances that do not occur in their living environment or workplace.

Currently, the driving method of air purifiers uses a method that is automatically driven electronically by comparing with the current measured values based on the values pre-programmed in the control unit. For this reason, products that have been programmed into the device and sold are the standard for pollution level. There is a problem in that it is difficult for users to change data.

By separating an independent measuring unit that can measure various harmful substances in the air and a driving unit that removes harmful substances, consumers can selectively operate an air quality improvement device suitable for their environment, considering economical efficiency and have already been installed The purpose of this is to provide a method of effectively controlling and managing various harmful substance removal devices to be installed in the future through a mobile terminal or a PC by integrating them into a cloud server through a single network using Wi-Fi or a mobile communication network.

In order to solve the present invention, the contents presented in FIG. 1 are for four components consisting of a measurement unit, a server unit, a display and operation unit, and a driving unit, and this is a wireless method such as Wi-Fi or LTE or a communication module such as a wired LAN. Can be integrated and operated through

The measurement unit may include a plurality of sensors capable of measuring various harmful substances existing in the air, and may include a communication module for transmitting the measured information to the server.

The server unit is connected to the network and receives the data transmitted from the measurement unit, and can perform a function of comparing in real time with the air quality management plan stored in the server after the user has set in advance using a terminal such as a smartphone or PC. .

In addition, the web server for displaying measurement data may be installed as a program inside the server unit, and may be connected through a network with separate hardware.

The driving unit is a device with a function of removing harmful substances, and can use various types of devices such as filter type, photocatalytic type, and UV type, and can perform functions by receiving driving commands from the server unit through Wi-Fi, LTE, and IOT communication modules. . However, it is not necessary to mount a display device such as a measuring sensor or a liquid crystal screen on the driving unit itself.

The display and control unit is software installed on a smartphone or PC, and receives air quality measurement values from a server and displays them visually on the screen, or creates an air quality maintenance plan through operations such as directly inputting the reference value for each hazardous substance. And send it to the server.

In addition, the alarm function can be activated when an emergency situation occurs, such as when the measured data from the measurement unit exceeds the standard value.

A terminal including a measuring device (measurement unit), a cloud server (control unit), a function-specific cleaning device (drive unit), and management and monitoring software by separating the'measurement unit' and the'server unit' display and operation unit ``drive unit'' through the present invention By installing separately into (display unit and indication unit), there is an effect of increasing manageability that enables efficient management of large-scale indoor spaces such as multi-use facilities without limiting the location and number of units.

In addition, by separating each component, a new device to which the air quality improvement technology developed in the future is applied can be easily integrated into the system. In particular, the newly integrated device does not require a measuring unit, a control unit, and a display unit, making it possible to manufacture inexpensively. There is an economic cost reduction effect.

The management and monitoring software installed on the terminal can change the set value in response to the standards for the content of harmful components in the air, which may be changed by government policy in the future, and according to the changed value, the operating time and intensity for each device can be determined. Since it can be adjusted automatically, it has the effect of enabling a smooth response compared to an integrated device that is difficult to change the set value once installed.

In addition, the air quality information transmitted and stored in real time from the meter to the cloud server can be linked back to the web server, and through this, measurement data can be checked and shared in various ways anywhere in the world.

1 is a diagram showing a configuration diagram of each component according to an embodiment of the present invention.
2 is a flow chart showing a method for controlling indoor air according to an embodiment of the present invention
3 is a diagram showing a measurement unit among the components of the present invention.
4 is a diagram showing a display and a control unit among the constituent parts of the present invention.
FIG. 5 is a diagram in which a description of the position indication is added to FIG. 4.

In order to achieve the present invention, four components consisting of a measurement unit 100, a server unit 200, a driving unit 300, and a display and operation unit 400 are included, and detailed functions for each component are implemented. The way to do this is as follows.

The measurement unit 100 may mount various measurement sensors 102 such as fine dust, carbon monoxide, carbon dioxide, nitrogen dioxide, radon, formaldehyde, volatile organic compounds, ozone, and the like.

Here, each sensor 102 is not permanently fixed to the electronic circuit board 113, but is configured to be removable and mounted with a separate socket 103, so that future expansion and upgrade can be easily manufactured.

In addition, a suction port 108 and a suction device (motor, fan) are provided to facilitate the measurement of the sensor by sucking outside air.

It also includes a communication module 101 capable of transmitting the measured value through the sensor. The communication module can be equipped with a wired LAN 105, Wi-Fi 101, etc. for indoor use, an LTE modem can be mounted for outdoor use, and can be connected to a communication network using a communication company SIM.

In the case of outdoor use, the GPS module 104 can be mounted to transmit the coordinates of the location where the device is installed.

It includes an LED lamp 109 and a small buzzer speaker 114 to check whether power is supplied or not.

The electronic power button 106 is provided to enable remote reboot via software through the communication module.

By securing the battery installation space 111 inside, it is possible to measure movement through external installation of the vehicle, etc.

By attaching the unique identification number of the measuring device to the bottom surface 110 of the product by barcode or QR code 112, it is possible to easily register the device to the server with a smartphone camera or the like.

The server unit 200 receives the real-time measurement data transmitted from the measuring device through the network communication unit 201, transmits the measured value to the mobile terminal or PC 400, or stores data previously set by the user from the measuring device. When the received data value approaches or exceeds the value set by the user in advance, it serves to issue an operation command to the driving unit 300 serving as each role registered in the server in advance.

In the system registration process, each measuring device 100 is automatically connected to the IP of the cloud server through the communication module 101, and information such as a unique identification number and location is registered in the cloud server.

Here, the number of measuring devices 100 that can be registered in the server is not limited, and the data size per transmission is 1kb or less, so tens of thousands of units can be registered in theory, but the network connected to the server 200 and the DB program ( It can be installed in consideration of the access speed of 202). This may be the same situation as the number of installations of the driving unit 300.

Like the measurement unit 100, the driving unit 300, which is a device in charge of air purification, is also automatically connected to the IP of the cloud server through the communication module 301, and information such as a unique identification number and location is transmitted to the cloud server. It is registered at 200.

Here, the cloud server 200 is provided with a command program 206 capable of giving an operation command to the previously registered driving unit 300, and the command program provides commands such as power on, off, and operation intensity to each device. You can get off.

The air quality measurement value received from the measuring device 100 can be adjusted to be stored in the first database 202 or a specific list in units of seconds to minutes depending on the need of the manager and the data transmission capacity situation, and automatically It is stored in the server.

In addition, the air quality maintenance plan created by the user using the display 402 and the operation program 403 of the smartphone or PC terminal 400 is stored in the second database 203 or a specific list on the server.

The monitoring program 204 that generates an event by comparing the first database 202 and the second database 203 is always driven in the form of a daemon, and when an event occurs, a command is issued to the driver 300 through the command program 205. By transmitting, the air purification unit 303 may be operated through the control device 302 on the driving unit, and fine adjustment may be possible through detailed commands such as high, medium, and weak.

Even while the air purification unit 303 of the driving unit 300 is operating, the measurement unit 100 continues to transmit measurement data on the current air quality to the server, and this measurement value approaches the reference value set by the user or If it falls below, the monitoring program 204 transmits a command to the command program 205 to stop the operation of the driving unit 300 or convert it to a standby state.

By repeating such a method, the measurement unit 100 and the server unit 200 may constantly interact through the network and maintain air quality at the level expected by the user.

In addition, the monitoring program 204 calculates the time required from the event occurrence to the end point and the date of replacement of consumables, so that the display program 402 of the manager's smartphone or PC indicates when to replace the consumables of devices with significantly reduced harmful substances reduction function. You can tell through.

In addition, the server unit 200 may be installed in the IDC or the like in a cloud form for safety, but may be installed and driven together in the PC terminal 400, which is a display and management unit, if necessary.

The software of the display and operation unit 400 operates in a smart phone and a PC environment and serves to visualize the measurement data received from the cloud server 200 in the form as shown in FIG. 4.

In addition, for each measuring device 100 and the air purification system 300, a function capable of operating data transmission time adjustment and rebooting is provided.

In addition, the operation program 403 mounted on the terminal can set the automatic operation mode and the manual operation mode for the air purifier 300, and the measurement unit 100 through communication with the monitoring program 204 of the server 200 ) And all the device states of the driving unit 300 can be displayed in real time through the display program 402, and the remaining amount of consumables and the replacement time can be displayed.

In addition, the administrator may establish an air quality maintenance plan through manipulation of the operation program 403 on the screen, and transmit and store it in the second database 203 or list of the cloud server 200.

Here, the air quality maintenance plan for the area where the measuring device 100 is located is inputted in the form of a number or a setting button on the screen of the operation program 403, and then firstly stored in the terminal 400, and the stored data is stored in the cloud server ( 200) and secondarily stored in the second database 203.

In addition, each measured value displayed on the terminal is also displayed as a graph 405 so as to know the change process, and the display program 402 of the PC terminal is a map API or manager in the form as shown in FIG. 5 to facilitate management of a large-scale facility. It is possible to visually display the location of each measuring device 100 on the building drawing image input by.

Here, in the case of a measuring device equipped with GPS, the location on a map can be displayed as a graphic such as a point using the received coordinate value.

In addition, data measured by each measuring device can be displayed in a unit of measurement unique to each hazardous substance item, and changes in measured data can be displayed in a graph 405 to make it easier to grasp the degree of increase or decrease.

Here, the unit of time displayed on the graph may be converted into units of 1 second, 10 minutes, 1 hour, 1 day, and January according to the user's setting and displayed 404.

The air quality maintenance plan stored in the second database on the server is compared in real time with the measured value of the first database received from the measuring device through the monitoring program 204, and if an over-measurement item occurs, the display program 402 installed in the administrator's terminal You can immediately notify you in a preset format.

The air purification device, which is a driving unit, does not mean a single device, but refers to independent devices separately manufactured for each of the most effective methods capable of removing harmful substances from the air.

For example, in the case of a device for removing fine dust, it consists of a filter unit and a fan device, and in the case of a device for removing bacteria and bacteria, it is composed of an ultraviolet UV lamp unit, and a motor unit for cover shielding, and the device for removing volatile organic compounds and formaldehyde. In this case, it could be composed of a chlorine dioxide gas generator and a fan device.

The device has a communication module such as wired LAN or Wi-Fi in common for communication with the server, and has an electric control unit that adjusts power and motor driving speed, so that the entire system can be easily operated without its own measurement unit, indicator unit, and display unit. It can be integrated and fine-tuned.

In order to more easily understand the specific content for carrying out the above-described invention, the following example will be described later.

Examples to be described below are an air quality meter that can measure fine dust, CO, CO2, NO2, radon, formaldehyde, and organic compounds in each classroom of A elementary school, and a filter-type air cleaner and chlorine dioxide gas generator as an air purification device. , It was assumed that a ceiling-type ultraviolet UV sterilizer and a window-type radon reduction device were installed.

[Example 1]

The measuring instrument always checks the air quality inside the classroom and transmits the measured value to the cloud server, and monitors the air quality condition of the entire classroom in the school through the administrator's terminal (PC) installed in a specific place such as the school office. According to the forecast of the Meteorological Administration, the level of fine dust was high, so the students were instructed not to open the windows through the school broadcast. However, when a student opened the window unconsciously due to the hot weather, the measuring instrument installed in the classroom It was transmitted to the cloud server that the level of dust PM2.5 has risen rapidly to 150㎍/㎡ beyond 100㎍/㎡, which is the proper value of the School Health Act, and there is a risk of fine dust in the classroom displayed on the screen of the administrator's PC located in the school office. At the same time as the alarm was displayed, a danger signal was also displayed on the smartphone of the principal and the nurse who was on the road. However, because the filter type air purifier was set up by the administrator in advance to operate the filter type air purifier when the level of fine dust exceeded 100 μg/㎡, the cloud server commanded the filter type air purifier to operate at the moment exceeding 100 μg/㎡. When the meter sent a signal to the cloud server that the value had dropped below 100µg/m², the operation was stopped and it was switched back to the standby state.

[Example 2]

With all windows closed and indoor ventilation was not available, a signal was sent to the cloud server that the radon level was above the proper level of 4pCl/L and ozone level of 0.06ppm in 8 of the 20 classrooms on campus. The cloud server immediately started operating the window-type radon reduction devices and chlorine dioxide generators installed in 8 classrooms according to the settings already stored, and each reduction device was operated in turn when the measuring value was transmitted to the cloud server below the appropriate value. Was stopped and it was switched to the standby state.

[Example 3]

When the students returned after lunch break, the measuring instrument confirmed that the level of airborne bacteria suddenly exceeded 800 CFU/㎡ and transmitted to the cloud server. The cloud server immediately started the chlorine dioxide generator and the measured value was 800 CFU/㎡. After confirming that it was lowered below, the operation was stopped and it was switched to the standby state. Afterwards, the cloud server confirmed through the infrared sensor of the measuring instrument that the student was in a vacant state after leaving school, and then transmitted an operation command to the ultraviolet UV disinfection device installed on the ceiling of the classroom at around 20:00 and performed ultraviolet sterilization for 30 minutes, and 0 CFU/ After confirming that it became m2, it was converted to the standby state.

[Example 4]

Parent A, who heard the news in the morning news that the waiting condition is very bad today, was worried about the health of his child in school. Mr. A was curious about the air quality in the classroom where his child was studying, and he took out his smartphone and accessed the homepage of the school the child is attending. When the child's class was selected, it was found that the air quality in the classroom was below the standard, and that the air purifier and the window-type radon reduction device were last operated about 30 minutes ago.

As a result of checking the operation rate of air quality improvement devices in all schools in Seoul by accessing the cloud server from his PC, the person in charge of the Seoul Metropolitan Office of Education found that the operation rate of filter-type air purifiers was higher than the average in 80 classes in 20 schools. It was recognized that it arrived sooner than planned, and by organizing an emergency budget, it was possible to purchase consumables and replace consumables such as filters at an appropriate time.

[Example 5]

In the future, it was known that a new type of radon reduction device was invented by a company that has a better reduction effect than the existing window-type radon reduction device, and the Office of Education tried to remove the existing window-type radon reduction device and adopt a new type of device. The product invented by this company was a product in which the measuring part, the display part, the control part, and the driving part were integrated, but at the request of the Office of Education, the measuring part, the display part, and the control part were removed, and a communication module was added to the driving part that actually took charge of the reduction function. Inexpensive products that could be integrated into the system were delivered, and the office of education saved considerable budget.

If we relate to each of the above-described examples, Example 1 shows the most basic achievements that can be achieved with the present invention, and shows an example in which the measuring instrument, the server, the terminal, and the driving unit act organically through the network and control the air quality. To show.

Example 2 is a case in which the present invention shows the advantage that the measurement unit and the driving unit are centrally managed through a server, so that simultaneous response and resolution to multiple spaces as well as a specific place is possible.

Example 3 is a case in which the present invention does not end with one response to one event, but shows the possibility of a complex response by utilizing the advantages of each of the various driving units connected to the server as much as possible.More advanced countermeasures can be implemented through software application. This is an example of the possibility.

Example 4 is an example showing the network advantages of the present invention, and shows that indoor air quality management of not only one school, but also the whole city and even the whole country is possible using the present invention.

Example 5 is an example of the flexible scalability of the present invention, and it is an example that shows the advantages of active integration and operation with the advent of advanced solutions due to technological advances.

In the above, the embodiments of the present invention have been described, but the present invention is not limited to the above embodiments, and whoever has ordinary knowledge in the field to which the present invention belongs without departing from the gist of the present invention claimed in the claims Or a variety of variations will be possible.

100... instrument housing
101...communication module
102... measuring sensor
103... socket for mounting measurement sensor
104...GPS module
105...LAN port
106...electronic switch
107...power inlet
108... air intake fan
109...status LED
110... meter housing (bottom)
111...Battery compartment
112... QR code for device recognition
200...server
201...Server communication unit
202...first database
203...second database
204...monitoring program
205...command program
300... air purifier housing
301...communication module
302... purification control unit
303...Air purifier
400...Smartphone, PC terminal
401... terminal communication department
402...display program
403...operation program
404... graph time setting button
405...graph
406...building drawings or maps

Claims (5)

Including a number of air quality measuring devices and various types of harmful substances reduction devices in the air, a cloud server program equipped with an algorithm that automatically controls them, and a program that can monitor or manipulate the components of the entire system by installing it on a smartphone or PC, etc. , An air management solution that automatically maintains indoor air quality above an appropriate level
The method of claim 1,
It has a function to measure the amount of harmful substances in the air through a number of sensors for air quality measurement, and to transmit the measured data in real time to a server connected to the network through a communication module such as WIFI or LTE, and to measure air quality. Air quality meter made to be able to remove and install the sensor
The method of claim 1,
After storing the data received from the air quality meter in the DB, comparing it with the user's set value, detecting the occurrence of the event, and removing the optimal harmful substances by considering the characteristics of various types of harmful substances reduction devices registered on the same network Server program consisting of a monitoring program that automatically calculates the method and gives an operation command to the command program, and a command program that sends the command to various reduction devices connected to the network in real time.
The method of claim 3,
By comparing the amount of toxic substances initially measured by the measuring instrument with the amount of toxic substances measured after each operation of the toxic substance reduction device and the reduction time, the optimal toxic substance reduction device is determined and the device is operated through a command program. Server program including
The method of claim 3
Based on the use period of the consumables installed in the abatement device, after calculating the amount of toxic substances measured by the measuring instrument and the toxic substance reduction device, the reduction efficiency is calculated, and then a function that determines and informs the appropriate consumable replacement time for the device. Server program including

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