KR101593044B1 - System and Method for Monitoring of Particulate Matter Concentration in Computer - Google Patents
System and Method for Monitoring of Particulate Matter Concentration in Computer Download PDFInfo
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- KR101593044B1 KR101593044B1 KR1020140103987A KR20140103987A KR101593044B1 KR 101593044 B1 KR101593044 B1 KR 101593044B1 KR 1020140103987 A KR1020140103987 A KR 1020140103987A KR 20140103987 A KR20140103987 A KR 20140103987A KR 101593044 B1 KR101593044 B1 KR 101593044B1
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- cooling fan
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/20—Cooling means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
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Abstract
Description
The present invention relates to fine dust monitoring, and more particularly, to a fine dust monitoring system which includes a fine dust filter and is provided with a computer fine dust concentration control system for controlling indoor air by a cooling fan whose speed is controlled in accordance with the temperature inside the main body and the concentration of fine dust in the air introduced from outside. Monitoring device and method.
Recently, it has been known that many floating dusts present in the atmosphere directly or indirectly affect the human body and natural ecosystem.
These atmospheric suspended solids consist of primary dust that is directly or indirectly discharged by artificial pollutants (factory chimneys, automobiles, etc.) and secondary dust produced by chemical reactions in the atmosphere.
Particularly, PM10 (Particulate Matter with a diameter less than 10 ㎛), which is a respirable dust or fine dust with a particle diameter of 10 ㎛ or less, is relatively long in atmospheric suspended particles and deposited in human lungs, And the like.
It may also have secondary effects such as visibility disorder and acid rain. In Korea, fine dust is caused by yellow dust that occurs in China and Mongolia besides artificial pollutants, and the degree of damage is also serious.
Especially, due to the necessity of management of fine particles such as sulphate particles and soot due to the increase of energy consumption and automobile due to economic activity, the domestic air pollutants have been classified into suspended particulates (PM10) having a diameter of 10 mu m or less as an atmospheric environment reference item.
In addition, the computer has become an indispensable item in the rapidly developed and highly advanced information age, and the use time of the computer is increasing due to the spread of the Internet.
Since the computer is mainly used in a tight and closed space where air circulation is not easy, it is more likely that the user is exposed to harmful air and dust in the room.
As the speed of the computer increases, the internal devices of the computer generate heat. To manage the heat efficiently, the inside of the computer is forcibly sucking / circulating air through about 2-3 motor fans, do.
This sucked air can lower the heat, but because the dust that comes in with the air accumulates inside the computer and the precision equipment, the temperature of the room is raised due to the overheating phenomenon caused by using the computer for a long time and the air with high density of fine dust repeatedly Thereby adversely affecting the health of the user.
Therefore, there is a need for a new technique for purifying the air in the contaminated room and improving the computer use environment.
The present invention has been made to solve the above-mentioned problems of the prior art in the use environment of the computer and to cope with fine dust, and it has a fine dust filter and has a cooling fan whose speed is controlled according to the internal temperature of the main body and the concentration of fine dust in the air introduced from outside. The present invention is directed to an apparatus and method for monitoring the concentration of fine particles in a computer.
The present invention relates to a computer fine dust concentration monitoring apparatus and method for controlling the cooling fan speed (flow rate) according to the fine dust concentration and enabling efficient indoor air management by informing the user of the replacement timing of the dust filter according to the result of real- The purpose is to provide.
An object of the present invention is to provide an apparatus and method for monitoring the fine particle concentration of a computer, which can ensure reliability by performing data correction and noise elimination according to temperature and humidity at the time of detecting fine dust concentration.
In the present invention, the heat generated by the CPU and the heat sink are used to remove the humidity in the air, and then the density is measured by the dust sensor. The fine dust is removed through the dust filter to enable accurate measurement of the fine dust concentration. An object of the present invention is to provide a computerized fine dust concentration monitoring apparatus and method.
An object of the present invention is to provide an apparatus and method for monitoring fine particle concentration of a computer, which displays a result of monitoring a fine dust concentration on a computer monitor so that a user can check the fine dust concentration in real time.
It is an object of the present invention to provide an apparatus and method for monitoring the fine particle concentration of a computer which can effectively improve an indoor air environment in an environment where each computer performs an air cleaning function and a plurality of computers are used.
The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.
According to an aspect of the present invention, there is provided an apparatus for monitoring the concentration of fine particles in a computer, the fine dust filter having a structure capable of being detachably attached to an upper end of a computer body, An inlet cooling fan and an outlet cooling fan whose speed is controlled according to the concentration, a micro dust sensor configured to measure the concentration of fine dust in the air flowing into the computer body, The fine dust concentration is detected based on the measured value of the fine dust sensor by removing the noise added to the measured value from the fine dust sensor and the fine dust concentration which controls the flow rate of the inlet cooling fan and the discharge cooling fan And a monitoring module.
Here, the fine dust concentration monitoring module may include a data standby unit for temporarily storing and waiting data measured by the fine dust sensor, a data correction unit for correcting the measured value of the fine dust sensor based on the temperature and humidity inside the computer, And noise rejection for extracting noise added to the measured value of the fine dust sensor by estimating the slope and slice coefficient of the approximate function by applying curve fitting, and noise elimination and concentration A concentration display section for displaying the concentration detected by the concentration detection section so that the user can know the concentration; and a flow rate and ventilation facility control section for controlling the flow rates of the inlet cooling fan and the discharge cooling fan on the basis of the concentration detected by the concentration detection section .
And the flow rate and ventilation facility control unit controls the flow rate of the inlet cooling fan and the outlet cooling fan and controls other ventilation devices in the room.
The noise elimination and concentration detection unit includes a parameter initialization unit for initializing parameters for block signal processing (BSP), a parameter for adjusting a parameter to be used for linear approximation by adjusting the number of measured scattered light intensity data to be used for linear approximation in a data segment, A data segmentation and block signal processing unit for performing data segmentation and block signal processing for linear approximation by constructing a measurement data block composed of a time data block constituted by a time index in the data segment and a measured scattered light intensity average value, A parameter calculating unit for calculating a parameter of an approximate function through autocorrelation and cross-correlation of block data composed of an average value of scattered light intensities, and an estimated value of scattered light intensity data of data segment block data from which noise is removed from the estimated approximate function, A scattered light intensity predicting unit for predicting the intensity, and a concentration calculating unit for calculating the concentration of the fine dust by applying the Beer-Lambert rule.
The data segmentation and block signal processing unit forms a measurement data block composed of a time data block composed of a time index in the data segment and a measured scattered light intensity average value, and performs data segmentation and block signal processing for linear approximation.
The fine dust sensor is characterized in that the density is measured after the humidity in the air is removed using the heat generated from the CPU of the computer body and the heat sink.
An air chamber is provided between the inlet cooling fan and the fine dust filter so that the air introduced from the outside does not mix with other air inside the computer body until the air passes through the fine dust filter.
According to another aspect of the present invention, there is provided a computerized fine particle concentration monitoring method comprising the steps of: correcting data by temperature and humidity when sensing fine dust concentration in a fine dust sensor inside a computer body; Adjusting a parameter to be used for linear approximation by adjusting the number of measured scattered light intensity data to be used for approximation, constructing a measurement data block composed of a time data block composed of a time index in the data segment and a measured scattered light intensity average value, Calculating a parameter of an approximate function through autocorrelation and cross-correlation of block data composed of an average value of scattered light intensity and data, calculating an estimated value of scattered light intensity data of noise segmented data segment block data from the estimated approximate function, Calculating a concentration of the fine dust using the calculated value of the scattered light intensity data, and controlling the calculated fine dust concentration display and the cooling fan speed.
The apparatus and method for monitoring computer fine dust concentration according to the present invention have the following effects.
First, it is possible to improve the use environment of the computer by controlling the indoor air by the cooling fan having the fine dust filter and controlling the speed according to the internal temperature of the main body and the concentration of fine dust in the air introduced from the outside.
Second, efficient indoor air management is possible by informing the user of the replacement timing of the dust filter according to the result of real-time monitoring.
Third, reliability of data can be secured by performing data correction and noise elimination according to temperature and humidity at the time of detecting fine dust concentration.
Fourth, the heat generated by the CPU and the heat sink are used to remove the humidity in the air, and then the concentration is measured by the dust sensor, and the fine dust concentration can be measured by removing the fine dust through the dust filter.
Fifth, the result of monitoring the fine dust concentration can be displayed on a computer monitor so that the user can check the fine dust concentration in real time.
Sixth, each of the computers performs an air cleaning function, thereby effectively improving the indoor air environment in an environment where a plurality of computers are used.
1A and 1B are diagrams of a computer fine dust concentration monitoring apparatus according to the present invention
2 is a detailed configuration diagram of a computer fine dust concentration monitoring apparatus according to the present invention.
3 is a detailed configuration diagram of a noise removing and concentration detecting unit according to the present invention;
4 is a flowchart showing a method of monitoring a computer fine dust concentration according to the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of an apparatus and method for monitoring computer fine dust concentration according to the present invention will be described in detail.
The features and advantages of the apparatus and method for monitoring computerized fine dust concentration according to the present invention will be apparent from the following detailed description of each embodiment.
FIGS. 1A and 1B are block diagrams of a computer fine dust concentration monitoring apparatus according to the present invention, and FIG. 2 is a detailed block diagram of a computer fine dust concentration monitoring apparatus according to the present invention.
The present invention has a fine dust filter and is capable of managing indoor air by a cooling fan whose speed is controlled according to the temperature inside the main body and the concentration of fine dust in the air introduced from the outside.
Particularly, in the measurement of the fine dust concentration, the linear least squares approximation (LLSFA) and the block signal processing (BSP) are combined to remove the measurement noise and increase the measurement performance of the fine dust concentration.
In the present invention, a fine dust measuring sensor is constructed in a computer, and the fine dust concentration is monitored using the fine dust measuring sensor, thereby performing an efficient air cleaning function.
1A and 1B, the apparatus for monitoring the fine particle concentration of a computer according to the present invention comprises a
In order to remove the noise added to the measured value from the
When the concentration of the fine dust in the air flowing into the
The
The micro dust filter (30), which is made of materials capable of water absorption and minimum PM2.5 fine dust filtering, displays the replacement time on a computer monitor based on the data monitored for a predetermined period so as to be periodically exchanged or cleaned, .
The measured data from the fine dust sensor is transmitted to the computer using an interface such as USB, and the final concentration is determined after removing noise from the measurement and correcting the concentration according to temperature.
Since the reliability of the fine dust concentration due to humidity is influenced in the case of the fine dust (PM10), especially the fine dust (PM2.5), it is necessary to remove the humidity of the air introduced into the dust filter. The monitoring device is not configured to measure the concentration of fine dust through the dust filter after removing the humidity at a high temperature by mounting a heater in the inlet portion of the external air inflow portion but the heat generated from the CPU of the
For this purpose, it is also possible to design the internal structure of the computer so that the heat generated by the CPU and the heat sink can be applied between the cooling fan and the fine dust sensor.
An air chamber is provided between the
This is to increase the accuracy in the process of measuring the fine dust concentration after removing the humidity in the air by using the heat generated from the CPU and the heat sink.
The detailed configuration of the computer fine dust concentration monitoring apparatus is composed of an
The
The fine dust
Here, the flow rate and ventilation
The details of the noise removal and concentration detection unit are as follows.
3 is a detailed configuration diagram of a noise removal and concentration detector according to the present invention.
The noise elimination and concentration detection unit includes a
Here, the data segmentation and block
The operation of the computer fine dust concentration monitoring apparatus according to the present invention is as follows.
4 is a flowchart showing a method of monitoring the computer fine dust concentration according to the present invention.
In order to manage indoor air by a cooling fan having a fine dust filter and controlled in speed according to the temperature inside the main body and the concentration of fine dust in the air introduced from the outside, first, the fine dust concentration is sensed by the fine dust sensor The data is corrected by the temperature / humidity. (S401)
The parameters to be used for the linear approximation are adjusted by adjusting the number of measured scattered light intensity data to be used for the data segment length and the linear approximation in the data segment (S402)
And a measurement data block composed of a time data block composed of a time index in the data segment and a measured average value of the scattered light intensity (S403)
Subsequently, parameters of an approximate function through autocorrelation and cross-correlation of the block data composed of the time index data and the scattered light intensity average value are calculated (S404)
Then, the estimated value of the scattered light intensity data of the noise-removed data segment block data from the estimated approximate function is calculated to predict the scattered light intensity (S405)
Subsequently, the concentration of the fine dust is calculated using the estimated value of the scattered light intensity data thus calculated (S406), and the calculated fine dust concentration display and the cooling fan speed (flow rate) are controlled (S407)
In the process of calculating the concentration of the fine dust, the coefficient of the linear approximation function is redefined using the curve fitting method for the k-th data block to track the change of the noise-removed signal to remove the noise .
In the step of calculating a linear approximation function for eliminating noise, a linear approximation function divides a data block having a length N into sub-data segments having a length L satisfying a condition of L << N , The average value of each sub data segment is obtained, and a coefficient of the linear approximation function is obtained by using a new data block composed of the average value.
An apparatus and method for monitoring computer fine dust concentration according to the present invention includes a fine dust filter and manages indoor air by a cooling fan whose speed is controlled according to the internal temperature of the main body and the concentration of fine dust in the air introduced from the outside, The user is informed of the replacement timing of the dust filter according to the result of real-time monitoring, thereby enabling efficient indoor air management.
As described above, it will be understood that the present invention is implemented in a modified form without departing from the essential characteristics of the present invention.
It is therefore to be understood that the specified embodiments are to be considered in an illustrative rather than a restrictive sense and that the scope of the invention is indicated by the appended claims rather than by the foregoing description and that all such differences falling within the scope of equivalents are intended to be embraced therein It should be interpreted.
10a.
20.
40. Computer body
Claims (8)
An inflow cooling fan and an exhaust cooling fan whose speed is controlled according to the internal temperature of the main body and the concentration of fine dust in the air introduced from outside for cooling the computer main body;
A fine dust sensor configured to measure a fine dust concentration of air flowing into a computer main body at a position where outside air is introduced;
A data correcting unit for correcting the measured value of the fine dust sensor based on the temperature and humidity inside the computer main body and a data correcting unit for applying the curve fitting to calculate the approximate function And a density detector for detecting a concentration of fine dust, and a noise removal / concentration detector for detecting a concentration of the dust detected by the density detector, And a flow rate and ventilation facility control unit for controlling the flow rates of the inlet cooling fan and the discharge cooling fan based on the concentration detected by the concentration detection unit Characterized by computer fine dust concentration monitoring device.
A parameter initialization unit for initializing parameters for block signal processing (BSP)
A parameter adjusting unit for adjusting a parameter to be used for linear approximation by adjusting the number of measured scattered light intensity data to be used for linear approximation in the data segment,
A data segmentation and block signal processor for performing data segmentation and block signal processing for linear approximation by constructing a measurement data block composed of a time data block constituted by a time index in the data segment and a measured scattered light intensity average value,
A parameter calculating unit for calculating a parameter of an approximate function through autocorrelation and cross-correlation of block data composed of time index data and scattered light intensity average value;
A scattered light intensity predicting unit for calculating an estimated value of scattered light intensity data of noise segmented data segment block data from the estimated approximate function to predict the scattered light intensity,
And a concentration calculator for calculating a concentration of fine dust by applying a Beer-Lambert rule.
A data block comprising a time data block composed of time indices in a data segment and a mean value of scattered light intensity measured, and performing data segmentation and block signal processing for linear approximation.
Adjusting a parameter to be used for linear approximation by adjusting the number of measured scattered light intensity data to be used for the data segment length and the linear approximation in the data segment;
Constructing a measurement data block comprising a time data block comprising a time index in the data segment and a measured scattered light intensity average value;
Calculating parameters of an approximate function through autocorrelation and cross-correlation of block data composed of time index data and scattered light intensity average value;
Calculating an estimated value of scattered light intensity data of noise segmented data segment block data from the estimated approximate function to predict the scattered light intensity;
Calculating the concentration of fine dust using the calculated value of the scattered light intensity data, and controlling the calculated fine dust concentration display and the cooling fan speed.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20180076463A (en) * | 2016-12-28 | 2018-07-06 | 코웨이 주식회사 | Dust sensor and compensating method thereof |
| CN108563308A (en) * | 2018-04-09 | 2018-09-21 | 东华理工大学 | A kind of cloud computing server radiator structure |
| KR101912624B1 (en) | 2018-05-18 | 2018-10-29 | 케이웨더(주) | Outdoor Air Quality Measuring Equipment |
| CN108829565A (en) * | 2018-06-30 | 2018-11-16 | 常州大学 | A kind of computer operation condition monitoring system |
| KR102023279B1 (en) * | 2018-03-27 | 2019-09-19 | 재단법인 다차원 스마트 아이티 융합시스템 연구단 | Method for correcting of particulate matter sensor and apparatus therefor |
| KR102091332B1 (en) | 2018-09-12 | 2020-03-19 | 박동민 | A computer main body having an indoor cleaning function and a room cleaning method using the computer main body |
| KR102147606B1 (en) * | 2019-09-10 | 2020-08-25 | (주)대우루컴즈 | Personal Computer Having Air Cleaning Unit |
| KR20210023454A (en) * | 2019-08-23 | 2021-03-04 | 재단법인 다차원 스마트 아이티 융합시스템 연구단 | Fine dust sensor measuring and correcting system and the method thereof |
| KR102315917B1 (en) * | 2020-08-04 | 2021-10-21 | 주식회사 메이커스테크놀로지 | Method for managing computer based on fine dust concentration and apparatus for performing the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20180076463A (en) * | 2016-12-28 | 2018-07-06 | 코웨이 주식회사 | Dust sensor and compensating method thereof |
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| KR102023279B1 (en) * | 2018-03-27 | 2019-09-19 | 재단법인 다차원 스마트 아이티 융합시스템 연구단 | Method for correcting of particulate matter sensor and apparatus therefor |
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| KR102243136B1 (en) * | 2019-08-23 | 2021-04-21 | 재단법인 다차원 스마트 아이티 융합시스템 연구단 | Fine dust sensor measuring and correcting system and the method thereof |
| KR102147606B1 (en) * | 2019-09-10 | 2020-08-25 | (주)대우루컴즈 | Personal Computer Having Air Cleaning Unit |
| KR102315917B1 (en) * | 2020-08-04 | 2021-10-21 | 주식회사 메이커스테크놀로지 | Method for managing computer based on fine dust concentration and apparatus for performing the same |
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