WO2014203997A1

WO2014203997A1 - In-atmosphere material flying-state determination device, filter for collecting flying material, and flying state determination program

Info

Publication number: WO2014203997A1
Application number: PCT/JP2014/066458
Authority: WO
Inventors: 大西　一成
Original assignee: 国立大学法人鳥取大学
Priority date: 2013-06-21
Filing date: 2014-06-20
Publication date: 2014-12-24
Also published as: JP5791063B2; JPWO2014203997A1; CN105324658A; CN105324658B

Abstract

An in-atmosphere material flying-state determination device (1) is provided with the following: an acquisition section (25b) for acquiring image information of a filter to which a material flying in the atmosphere adheres; a color extraction section (11) for extracting color information from the acquired image information; a determination section (11) for determining, on the basis of the extracted color information, the flying state of a material in the atmosphere; and a display section (17) for displaying, on the basis of the determination results of the determination section, information indicating such flying state.

Description

Apparatus for determining the flying state of substances in the atmosphere, a filter for collecting flying substances, and a program for determining flying conditions

The present invention relates to an apparatus for determining the flight status of yellow sand and pollutants contained in the atmosphere.

There is yellow sand as a meteorological phenomenon in which soil particles rolled up from the dry and semi-arid areas of the East Asian continent are carried to the lee by a westerly wind. Yellow sand is often observed in Japan in spring. In recent years, the amount of released air pollutants has increased due to urban and industrialization accompanying economic growth in the East Asian region, and it has been observed that these air pollutants are transported to Japan alone or together with yellow sand. .

JP 2012-233822 A JP 2004-053357 A

According to recent research, yellow sand and pollutants contained in the atmosphere are known to cause health damage. In other words, on days when there is a lot of yellow sand and pollutants in the atmosphere, it is reported that the number of people complaining of skin symptoms increases, causing respiratory symptoms due to transboundary pollutants, worsening asthma due to yellow sand components. ing. In addition, it is known that the symptoms of eyes and nose worsen in people with a history of hay fever on a yellow sand day.

The components of flying substances such as yellow sand contained in the atmosphere vary depending on the flight route, and the effect on the human body varies depending on the types of components contained in the atmosphere. Therefore, if the flight status (type and amount) of flying substances in the atmosphere can be grasped, for example, it is possible to take measures such as wearing a mask, closing windows, using an air cleaner, avoiding going out, etc. The onset and worsening of symptoms can be prevented.

Conventionally, there are devices disclosed in Patent Documents 1 and 2 as devices for measuring yellow sand and the like in the atmosphere.

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a determination device capable of determining the flying state of yellow sand and contaminants contained in the atmosphere.

An apparatus for determining a flying state of a substance in the atmosphere according to the present invention includes an acquisition unit that acquires image information of a filter to which a substance flying in the atmosphere is attached, and a color extraction unit that extracts color information from the acquired image information. And a determination unit that determines a flying state of a substance in the atmosphere based on the extracted color information, and a display unit that displays information indicating the flying state based on a determination result by the determination unit.

In the flying state determination device, the determination unit determines whether the component related to yellow sand in the atmosphere is based on a value calculated based on a predetermined determination formula from the extracted color information. It may be determined whether or not it is a yellow sand day that is considered to be relatively large. In that case, a display part may display the information which shows that it is a yellow sand day.

Alternatively, the determination unit may determine whether yellow sand and / or contaminants are flying in the atmosphere based on a value calculated from the extracted color information based on a predetermined determination formula. At that time, the display unit may display information indicating that yellow sand and / or contaminants are flying.

The filter according to the present invention used in the above-described atmospheric state determination device is a filter for collecting airborne substances. The first filter according to the present invention has a plurality of divided regions, and a chemical that reacts only with a specific substance is applied to at least some of the plurality of divided regions. The second filter according to the present invention includes a color chart including a predetermined reference color.

The program according to the present invention is a computer-readable program for determining the flying state of substances in the atmosphere. The program includes a step of acquiring image information of a filter in which a substance flying in the atmosphere is attached to a computer, a step of extracting color information from the acquired image information, and a step in the atmosphere based on the extracted color information. The step of determining the flying state of the substance and the step of causing the display means to display information indicating the flying state based on the determination result are executed.

According to the present invention, it is possible to determine the flight status of yellow sand or the like based on the color of the filter to which yellow sand or the like flying in the atmosphere is attached, and display information indicating the flight status based on the determination result. Thereby, the user can easily recognize the flight status of yellow sand and the like in the atmosphere, and can take appropriate measures to prevent the onset and worsening of symptoms derived from the flying material.

The figure which shows the structure of the collection apparatus of the flying substance in the atmosphere in Embodiment 1,2. (A) Enlarged view of filter with no contaminants attached, (b) Enlarged view of filter with contaminants attached Diagram showing frequency distribution of color information (luminance Luminance) extracted from filter image information on yellow sand day / contamination day / clean day The figure which showed frequency distribution of the color information (Y value) extracted from the image information of a filter in a yellow sand day / contamination day / beautiful day The figure which showed the frequency distribution of the color information (C value) extracted from the image information of a filter in yellow sand day / contamination day / beautiful day The figure which showed the frequency distribution of the color information (R value) extracted from the image information of a filter in yellow sand day / contamination day / clean day The figure which showed the frequency distribution of the color information (S value (saturation)) extracted from the image information of a filter in a yellow sand day / contamination day / beautiful day A diagram showing the frequency distribution of APC values on the day of minute flight / day of yellow sand / contamination Illustration explaining measurement date classification based on APC value The figure which shows the structure of the flying state determination apparatus which determines the flying state of the substance in the atmosphere in Embodiment 1,2. The figure explaining the filter photographed with the color chart The flowchart which shows the operation | movement of the yellow sand day determination by the flying state determination apparatus in Embodiment 1. The figure which showed the example of a display of the determination result displayed on the display part in Embodiment 1. The flowchart which shows the operation | movement of flying determination, such as yellow sand, by the flying state determination apparatus in Embodiment 2. The figure which showed the example of a display of the determination result displayed on the display part in Embodiment 2. The flowchart which shows another operation | movement of the yellow sand day determination by the flying state determination apparatus in other embodiment. The figure which shows the structure of the flying state determination apparatus in Embodiment 3. The figure explaining the various modifications of the filter for collection of flying substances in other embodiments

(Background to the present invention)
The inventor of the present invention measured (collected) the flying material contained in the atmosphere every predetermined time (24 hours) using a white filter, and the color of the filter after the measurement depends on the type of the flying material. I found something different. And based on this knowledge, the inventor can determine the flight status (the type and amount of components of the flying particles) of flying substances such as yellow sand and pollutants contained in the atmosphere by analyzing the color of the filter. I thought.

FIG. 1 is a diagram showing an outline of the configuration of a sampling device used for measurement (collecting) of flying substances (yellow sand, pollutants). The sampling device 50 includes an air pump 51 inside, and an air flow is generated by the air pump 51 so that the atmosphere can be taken into the inside from the outside of the device. At that time, the taken-in outside air passes through the filter 52. Thereby, the flying material contained in the atmosphere can be collected by the filter 52.

The filter 52 is a white paper filter. FIG. 2A is an enlarged view of the filter 52 before the start of collection, and FIG. 2B is an enlarged view of the filter 52 after the end of collection. FIG. 2B shows that various flying substances (contaminants, yellow sand) are attached to the fibers of the filter 52.

The inventor conducted image analysis of the collected filter to extract the color component of the filter, and investigated the relationship between the degree of each extracted color component and the flying state.

Table 1 below shows the results of the principal component analysis of the flying substance components contained in the atmosphere by the inventor. Here, after analyzing the concentration of the representative components of flying substances (ICP-MS method), the principal component analysis was statistically performed using the concentration values. In Table 1, each numerical value indicates a coefficient (ratio) of each component. For example, soil component = 0.959 × Fe + 0.94 × Ca + 0.93 × Mn + 0.895 × Al. It can be seen that components with higher coefficients (Fe, Ca, Mn, Al, etc.) contribute to the main component of soil components. The present inventor considers the results shown in Table 1 and compares the tendency of the main components of flying substances contained in the atmosphere with soil components such as Fe, Ca, Mn, Al, Cr, Ni, and Dust (dust). the type 1 included many specific, spherical (spherical particles), Pb, Cd, Zn, and type 2 contain relatively large component of contaminants such as sO _2, were classified into three types of 3 otherwise .

Then, the present inventor classified the day showing the tendency of the main component as in Type 1 as “Yellow Sun Day” and the day showing the tendency of the main component as in Type 2 as “Contamination Day”. That is, the “yellow sand day” is a day when the yellow sand particles are considered to fly relatively more than the components of other flying substances. For example, when the atmospheric visibility (horizontal line-of-sight) is a predetermined distance (for example, 10 km) or less, it is determined as a yellow sand day. The “contamination day” is a day on which the contamination-derived component is considered to be flying relatively more than the components of other flying substances. A day with a relatively small number of flying particles other than “Kosa Sun” and “Contamination Day” is regarded as a “clean day”.

The present inventor photographed 279 filter samples collected from 2007 to 2011 together with a color chart giving a color reference, and CMYK, RGB, H (hue) S (saturation) B (lightness) values. Accurately recorded color information. Furthermore, the present inventor also obtained luminance luminance from the RGB values using the following formula.
Luminance luminance = (0.298912 x R + 0.586611 x G + 0.114478 x B) (1)

3 to 7 are diagrams showing frequency distributions for color components (luminance, Y, C, R, S) on yellow sand day / contamination day / clean day based on recorded color information and calculated luminance. .

With reference to FIGS. 3 to 7, the present inventor obtained the following knowledge on the day when yellow sand and pollutants are flying.
1) Trend of each value on the day when yellow sand and pollutants are flying ・ Refer to Fig. 3, the luminance luminance is about 200 or less on the yellow sand day and the contaminated day.
-With reference to FIG. 4, Y value will be about 20 or more on a yellow sand day and a contamination day.
-Referring to FIG. 5, the C value tends to be higher on the contaminated day than on the yellow sand day.
Referring to FIG. 6, the R value tends to be higher on the yellow sand day than on the contamination day.
-Referring to FIG. 7, the S value tends to be high on a yellow sand day and low on a contaminated day.

Note that if the amount of flying yellow dust or the like is large in the atmosphere, a large amount of yellow sand or the like adheres to the filter 52, and thus the luminance (luminance) value becomes low. Therefore, when the luminance is less than or equal to a predetermined value (for example, 200), it is considered that a predetermined amount or more of yellow sand or the like is flying.

2) Discrimination between the yellow sand day and the contamination date The present inventor uses a discriminant analysis method to determine the distinction between the yellow sand day and the contamination date based on the color information and the classification of the yellow sand day / contamination date. I asked for a function. As a result, the following judgment formula (yellow sand judgment formula) was obtained. The following judgment formula obtains an APC (Air Pollution Color) value as an indicator of the flying state of flying substances in the atmosphere based on color information.
APC = 0.871 × C-0.551 × M + 0.463 × Y-0.289 × H + 0.175 × S
+ 0.325 x Bright + 0.265 x Luminance-90.656 (2)

Fig. 8 shows the frequency distribution of APC values on the date of minute flight / day of yellow sand / date of contamination. From FIG. 8, it can be seen that the APC value is distributed in the positive region on the yellow sand day, and the APC value is distributed in the negative region on the contaminated day. From this, it can be seen that the yellow sand day and the contamination day can be distinguished based on the APC value.

FIG. 9 is a diagram showing classification based on APC values. In FIG. 9, the horizontal axis represents the APC value, and the vertical axis represents the frequency of observation days having the APC value. When the APC value is positive, it is judged as a yellow sand day (a clear yellow sand day when the absolute value of the APC value is large), and when the APC value is negative, the contamination day (when the absolute value of the APC value is large) It is determined that it is an obvious contamination day). On the observation day when the APC value is near 0, the amount of flying material is less than that of the yellow sand day or the contaminated day, but a sufficient amount of flying material is observed to raise subjective symptoms. Therefore, even when the APC value is close to 0, determining that it is either a yellow sand day or a contaminated day provides the user with a criterion for determining the necessity of measures to prevent the deterioration of symptoms. It is useful.

In addition, the present inventor performed collection of flying substances using a filter in Tottori. Since Tottori has almost no industrial zone, high-concentration contamination of filters can be regarded as yellow sand and contaminants originating from the border (groups (1) and (4) in FIG. 9). In the groups (2) and (3) in FIG. 9, the local soil soars and the exhaust gas of the local car is considered to be contaminated, but the deterioration of subjective symptoms is observed even on such a day.

Based on the above knowledge, the present inventor devised a method for determining the flying state of flying substances such as yellow sand and pollutants in the atmosphere based on the color of the filter that collected the flying substances in the atmosphere.

(Embodiment 1)
Hereinafter, a flying state determination apparatus (hereinafter referred to as “flying state determination apparatus”) for substances in the atmosphere, which is an embodiment of the present invention, will be described with reference to the accompanying drawings.

1. Configuration of Flying State Determination Device FIG. 10 is a diagram showing the configuration of an embodiment of the atmospheric state determination device according to the present invention. The flying state determination device 1 of the present embodiment is a device that determines whether a determined day is a yellow sand day or a contamination day based on the color of a filter that collects flying substances in the atmosphere.

The flying state determination apparatus 1 includes a controller 11 that controls the entire operation, a display unit 17 that performs screen display, an operation unit 19 that is operated by a user, and a data storage unit 21 that stores data and programs.

The controller 11 can be composed of a CPU and an MPU, and realizes a contamination date / yellow sand date determination function to be described later by executing a predetermined control program. The controller 11 may realize a predetermined function in cooperation with software, or may realize a predetermined function only with hardware.

The display unit 17 includes a liquid crystal display (LCD), an organic EL display, or the like. The operation unit 19 includes a keyboard, a mouse, a touch panel, and the like.

The data storage unit 21 is a recording medium that stores image information and a control program, and can be configured by a recording medium such as a hard disk (HDD), a semiconductor memory, or an optical disk. The data storage unit 21 stores various information such as a control program executed by the controller 11, parameters necessary for control, and image information.

Furthermore, the flying state determination device 1 includes

interfaces

25a and 25b for connecting to a network such as an external device or the Internet. The

interfaces

25a and 25b perform communication complying with interface standards such as USB (Universal Serial Bus), HDMI (High Definition Multimedia Interface), LAN, IEEE 1394, and bus interfaces such as PCI and ISA. The flying state determination apparatus 1 may further have a communication interface according to a 3G line or LTE (Long Term Evolution) standard, and may be connected to a network such as the Internet via those communication interfaces.

The flying state determination device 1 is connected to an imaging device 31 that captures an image. The imaging device 31 includes an optical system including a lens, an image sensor such as a CCD, and a control circuit. The imaging device 31 captures a subject image incident via an optical system with an image sensor and generates image information. The imaging device 31 may hold the generated image information in an internal recording medium (such as an HDD or a memory card) or may output it to the outside. The overall operation of the imaging device 31 is controlled by a control circuit. Image information captured by the imaging device 31 is transmitted to the flying state determination device 1.

2. Operation of the flying state determination device The operation of the flying state determination device 1 will be described. The flying state determination apparatus 1 determines the yellow sand day / contamination date using the filter 52 to which flying substances in the atmosphere adhere. First, collection of flying substances in the atmosphere by the filter 52 will be described.

The collection of airborne substances in the atmosphere by the filter 52 is performed using a collection device 50 shown in FIG. Specifically, the filter 52 is installed in the collection device 50 and the air pump 51 is operated. As a result, an air flow is generated in the sampling device 50, the air is taken in from the outside of the device, and the taken-in air is passed through the filter 52. As a result, flying substances contained in the atmosphere adhere to the filter 52. The color of the filter 52 changes according to the component and amount of the flying material that has adhered. In the present embodiment, the filter 52 is replaced every predetermined time. That is, the flying material is collected (measured) every predetermined time. The predetermined time is set to an appropriate fixed time (for example, 1 to 24 hours) during which the flying material can be collected.

When the filter 52 to which the flying substance is attached (collected) is obtained as described above, next, the filter 52 is imaged by the imaging device 31, and image information of the filter 52 is obtained. At this time, it is preferable that the imaging device 31 captures an image of the filter 52 under the same imaging conditions (aperture, shutter speed, ISO sensitivity, light source, etc.). Further, as shown in FIG. 11, the filter 52 captures an image together with the color chart 20 that provides reference color information. The color chart 20 includes a plurality of reference colors. By using the color information of the color chart 20, the color of the filter 52 can be corrected. Then, using the image information obtained by the imaging device 31, the flying state determination device 1 performs a yellow sand day determination operation.

The operation of the flying state determination apparatus 1 will be described with reference to the flowchart of FIG. First, the controller 11 of the flying state determination device 1 acquires image information of an image including the color chart 20 and the filter 52 from the imaging device 31 (S11).

The controller 11 analyzes the color of the acquired image information and acquires the color information included in the image of the filter 52. That is, the controller 11 acquires color information regarding RGB, CMYK, and HSB from the image information of the filter 52. At this time, the color correction of the color of the filter 52 is performed based on the color information of the color included in the color chart 20. This makes it possible to acquire color information based on the same reference even when the shooting conditions are different.

The controller 11 calculates an APC value from the acquired color information using the above-described determination formula (2) (S13).
APC = 0.871 × C-0.551 × M + 0.463 × Y-0.289 × H + 0.175 × S
+ 0.325 x Bright + 0.265 x Luminance-90.656 (2)

The controller 11 determines whether the observation date is a yellow sand day or a contamination day based on the calculated APC value (S14). Specifically, the controller 11 determines that it is a yellow sand day when the APC value is positive (S15), and determines that it is a contamination day when it is negative (S16). The controller 11 displays information indicating the determination result on the display unit 17 (S17). At this time, information indicating the amount of yellow sand or contaminants may be displayed on the display unit 17 at the same time. The amount of yellow sand or pollutant can be determined in proportion to the absolute value of the APC value.

FIG. 13 shows a display example of the determination result on the display unit 17. In FIG. 13, a determination result 21 indicating that it is a yellow sand day is displayed, and the amount of flying yellow sand is also displayed in a bar format 23. In addition, the display of the amount of flying yellow sand (bar length) is changed according to the value of the APC value. By referring to such a display, the user can easily recognize whether it is a yellow sand day or a contamination day, and can take appropriate measures to prevent symptoms caused by the flying material.

In the present embodiment, it is determined as either a yellow sand day or a contamination day according to the sign of the APC value. As mentioned above, even on the observation day when the APC value is near 0, a sufficient amount of flying material is observed to increase subjective symptoms, so it is determined that it is either a yellow sand day or a contamination day. Therefore, it is possible to provide the user with a criterion for determining the necessity of measures for preventing the deterioration of symptoms, which is meaningful.

3. Summary As described above, the flying state determination apparatus 1 according to the present embodiment obtains color information from the acquired image information and the interface 25b that obtains the image information of the filter 52 to which the substance flying in the atmosphere is attached on the measurement date. A controller 11 is provided for determining the arrival status of substances contained in the atmosphere based on the extracted color information, and a display unit 17 for displaying information indicating the arrival status based on the determination result. With this configuration, it is possible to determine the arrival status of substances contained in the atmosphere based on the color of the filter 52. For example, in the present embodiment, when the date determined is based on the APC value calculated from the color information based on the predetermined determination formula (2), the components related to yellow sand are flying relatively more than the other components. Determine whether it is a possible yellow sand day. Thereby, it can be warned whether the determined day is a yellow sand day or a contamination day. The user can take appropriate measures to prevent symptoms caused by the flying material with reference to the warning.

(Embodiment 2)
In Embodiment 1, it was determined whether it was a yellow sand day or a contamination day based on the APC value. In the present embodiment, another example of a flying state determination device that determines whether yellow sand or the like is flying is disclosed. In addition, the fact that yellow sand or the like is “flying” means flying in such an amount that the symptoms caused by the flying substance are expected to develop or worsen.

The configuration of the flying state determination device of the present embodiment is the same as that of the first embodiment and is as shown in FIG. 1, and thus detailed description thereof is omitted here. With reference to the flowchart of FIG. 14, operation | movement of the flying state determination apparatus of this embodiment is demonstrated.

The controller 11 of the flying state determination device 1 first acquires image information of an image including the color chart 20 and the filter 52 from the imaging device 31 (S21).

The controller 11 analyzes the color of the acquired image information and acquires the color information included in the image of the filter 52. That is, the controller 11 acquires color information regarding RGB, CMYK, and HSB from the image information of the filter 52. At this time, the color correction of the color of the filter 52 is performed based on the color information of the color included in the color chart 20.

The controller 11 calculates the luminance (luminance) from the acquired color information using the above-described equation (1) (S23).
Luminance luminance = (0.298912 x R + 0.586611 x G + 0.114478 x B) (1)

The controller 11 determines the arrival state of particles on the observation day based on the calculated luminance (luminance) value and Y value (S24). Specifically, the controller 11 determines whether or not the luminance value is a first predetermined value (for example, 200) or less and the Y value is a second predetermined value (for example, 20) or more. (S24). When the luminance value is not more than the first predetermined value and the Y value is not less than the second predetermined value, it is determined that yellow sand or the like is flying (S25). Otherwise (NO in S24), the controller 11 determines that yellow sand or the like is not flying (S26). And the controller 11 displays the information which shows the determination result on the display part 17 (S27). At that time, information indicating the amount of the flying substance may be displayed on the display unit 17 at the same time. The amount of flying yellow dust or pollutants can be determined based on the magnitude of the luminance value.

FIG. 15 shows a display example of the determination result displayed on the display unit 17. In the example of FIG. 15, the amount of particles flying is also displayed in the bar format 23b. By referring to such a display, the user can easily recognize whether or not there is a lot of yellow sand or the like flying into the atmosphere, and can take appropriate measures to prevent symptoms caused by flying substances.

In this embodiment, in step S24, it is determined whether or not yellow sand or the like is flying more than a predetermined amount based on both the luminance value and the Y value. A similar determination may be made based on either one of the values.

As described above, in the present embodiment, it is determined whether yellow sand or contaminants are flying based on the luminance value calculated from the color information based on the predetermined determination formula (1). For this reason, a user can be warned when there is a possibility that yellow sand or contaminants are flying.

(Embodiment 3)
In the present embodiment, a configuration example of the flying state determination device that enables the collection of flying substances and the determination of the flying state with one device will be described. In FIG. 17, the structure of the flight determination apparatus of this embodiment is shown. The flying state determination device 1b of the present embodiment includes a flying state determination unit 10 that determines the state of flying substances in the atmosphere, the imaging device 31, a fan 71 that generates an air flow, and a fan drive that drives the fan 71. Part 73.

The flying state determination unit 10 has the same configuration as the flying determination device 1 shown in the above-described embodiment, and realizes the same function.

The flying state determination device 1b accommodates the

constituent elements

10, 31,. The case 80 is provided with an intake port 81 for taking air into the apparatus 100 and an exhaust port 83 for discharging the taken air to the outside of the apparatus 100. Furthermore, the flying state determination device 100 includes a holding unit 85 for holding the filter 52.

The operation of the flying state determination device 1b of the present embodiment having the above configuration will be described below. The fan 71 driven by the fan driving unit 73 generates an air current in the device 1b. Due to this air flow, the air is taken in from the outside to the inside of the device 1b through the air inlet 81. The taken-in air passes through the filter 52 held by the holding unit 85 and is discharged from the discharge port 83 to the outside of the apparatus 1b. As the atmosphere passes through the filter 52, contaminants contained in the atmosphere adhere to the filter 52.

The imaging device 31 includes a light source, irradiates the filter with illumination light from the light source, and takes an image of the surface of the filter 52. The imaging device 31 transmits the captured image information to the flying state determination unit 10. The flying state determination unit 10 performs the determination process shown in the above-described embodiment, and the determination result is displayed on the display unit 17.

As described above, the flying state determination device 1b of the present embodiment holds the fan 71 that generates an air flow for taking the atmosphere into the case 80 from the intake port 81, and the filter 52 that adheres a substance contained in the atmosphere. And an imaging device 31 that captures an image of the surface of the filter 52 and generates image information. With this configuration, in the first embodiment, the measurement (collection) of the flying substance and the determination of the flying state are performed by separate devices. However, in the flying state determination device 1b of the present embodiment, these processes are performed in one. It becomes possible to carry out with an apparatus. Such a configuration of the flying state determination device can be incorporated into an electric device having a function of circulating air, such as an air purifier or an air conditioner. In this case, the air purifier or the air conditioner may control the functions (air purifying function, temperature control function, etc.) of these devices according to the determination result of the flying state.

(Other embodiments)
The above-described embodiment is an example of a configuration for realizing the present invention. The idea of the present invention is not limited to the above embodiment, and can be applied to other embodiments. The example of other embodiment which can apply the idea of the following this invention is shown.

(1) In the first and second embodiments, the flying

state determination devices

1 and 1b acquire the image information of the filter 52 from the external imaging device 31. However, the flying

state determination devices

1 and 1b themselves may include an imaging unit, and the image information of the filter 52 for determination may be generated inside the flying state determination device 1 by the imaging unit.
(2) In the first embodiment, two choices are made based on the APC value: yellow sand day or contaminated day (S13 to S16). However, it is possible to make a determination of three choices of yellow sand day / contamination date / clean day.

For example, when the absolute value of the APC value is in a range smaller than a predetermined value, it may be determined that the day does not correspond to either a yellow sand day or a contaminated day (a beautiful day). This predetermined value is determined in consideration of the relationship between the actual atmospheric condition and the onset of health damage.

Alternatively, before performing the determination based on the APC value (S14), it may be first determined whether to perform the determination based on the luminance luminance value. That is, based on the knowledge (see Fig. 3) that the luminance luminance is less than the predetermined value (about 200) on days when the concentration of flying substances is high, the luminance luminance is compared with the predetermined value, and the APC value is determined based on the comparison result. It may be determined whether or not to perform. For example, as shown in the flowchart of FIG. 16, the luminance luminance is compared with a predetermined value (S12b), and when the luminance is larger than the predetermined value, it is determined that the day is a beautiful day (S15b). On the other hand, when the luminance is equal to or lower than the predetermined value, the yellow sand day or the contamination date based on the APC value may be determined (S13 to S16).

(3) In the above embodiment, the APC value is calculated using each of the luminance (Luminance) value, C value, M value, Y value, H value, S value, and Bright value. However, it is not always necessary to use all of these parameters in calculating the APC value. In calculating the APC value, at least a luminance (Luminance) value, a C value, a Y value, and an S value may be used.

(4) In the above embodiment, the material of the filter 52 for collecting airborne substances in the atmosphere is paper, but is not limited to this. As long as the material flying in the atmosphere adheres and the material changes in color according to the attached component, the material is not limited to paper, and the filter can be made of any material.

(5) FIG. 18 is a view showing a modified example of the filter 52. The filter 52b in FIG. 18A has a plurality of regions. Each region is coated with a drug so as to develop a color in response to a unique element, virus, or substance. For example, the region 53 is coated with a chemical that reacts with Mn to cause a chemical reaction and turns purple. In other regions, a drug that reacts with a substance specific to each region (ion, heavy metal, etc.) and changes color is applied. When such a filter 52b is used, the controller 11 extracts a predetermined color (color determined by a chemical reaction) determined for each region by image analysis, and extracts the luminance thereof in the atmosphere. The types and amounts of substances contained in can be measured.

Further, as shown in FIG. 18B, a color chart 20b may be printed on a filter in advance. By using such a filter 52c, the trouble of preparing a color filter at the time of photographing of the filter by the imaging device 31 can be omitted, and the convenience for the user can be improved.

(6) Information indicating the flight status displayed on the display unit 17 is not limited to the information shown in FIGS. 13 and 15, and various information can be considered. For example, information indicating the amount of yellow sand or contaminants, or information indicating the degree of adverse effects on health may be used. Any kind of information, text, or image information may be used.

Also, a plurality of threshold values for the APC value may be provided, and a message to be displayed may be varied depending on the APC value when it is determined as “yellow sand day” or “contamination day”. For example, for “yellow sand” or “pollutant”, messages such as “very high”, “slightly high”, “careful for sensitive people”, “normal”, “moderate” etc. according to APC value May be switched and displayed.

(7) Substances adhering to the filter include not only yellow sand but also various substances contained in the atmosphere. For example, pollutants, viruses, pollen, house dust, microorganisms and the like are included. When each substance (yellow sand, pollutant, virus, pollen, house dust, microorganism, etc.) is to be judged, the characteristics of color information corresponding to each substance are measured in advance and used for judgment based on the characteristics. By setting the calculation formula, coefficient, threshold value, etc., it becomes possible to determine various substances contained in the atmosphere. At this time, you may use the filter which apply | coated the chemical | medical agent which changes in response to each substance, such as a pollutant, a virus, pollen, house dust, and microorganisms.

(8) In the above embodiment, the control program (application) executed by the controller 11 to realize the function of the flying state determination device is downloaded via a network or a recording medium such as a CD-ROM. It can be provided to the flying state determination device 1.

(9) In the above-described embodiment, the flying state determination device can be configured as a dedicated device for determining the state of the flying substance in the atmosphere, such as a personal computer, a tablet computer, or a smartphone. Various general-purpose information processing apparatuses can be used. Or you may incorporate the function of a flying state determination apparatus in the apparatus which circulates air like an air cleaner, an air conditioner, and a circulator.

Claims

An acquisition unit for acquiring image information of a filter to which a substance flying in the atmosphere is attached;
A color extraction unit that extracts color information from the acquired image information;
Based on the extracted color information, a determination unit that determines a flying state of a substance in the atmosphere;
An apparatus for determining a flying state of a substance in the atmosphere, comprising: a display unit that displays information indicating the flying state based on a determination result by the determination unit.
The determination unit is based on a value calculated from the extracted color information based on a predetermined determination formula, and the date when the determination is performed is relatively large in components related to yellow dust in the atmosphere relative to components of other flying substances. Judge whether it is a possible yellow sand day,
The display unit displays information indicating that it is the yellow sand day.
The apparatus for determining a flying state of a substance in the atmosphere according to claim 1.
The determination unit determines whether or not yellow sand and / or contaminants are flying in the atmosphere based on a value calculated based on a predetermined determination formula from the extracted color information,
The display unit displays information indicating that yellow sand and / or pollutants are flying,
The apparatus for determining a flying state of a substance in the atmosphere according to claim 1.
The said color extraction part correct | amends the color information of the said filter based on the color information of the color chart containing the predetermined | prescribed reference color image | photographed on the same conditions as the said filter. For determining the state of airborne substances in the atmosphere.
5. The apparatus for determining a flying state of a substance in the atmosphere according to claim 1, wherein the acquisition unit includes an imaging unit that captures an image of the filter and generates the image information.
The determination unit determines a flying state of a substance in the atmosphere based on a predetermined determination formula,
The predetermined determination formula includes parameters of a luminance value, a C (cyan) value, a Y (yellow) value, and an S (saturation) value extracted from the image information. The apparatus for determining the flying state of substances in the atmosphere.
An air intake,
A fan that generates an air flow for taking air into the case from the intake port;
A holding part for holding a filter for adhering a substance contained in the atmosphere taken in the case; and
5. The atmospheric substance flying according to claim 1, wherein the acquisition unit captures an image of the surface of the filter held by the holding unit and generates the image information from the captured image. 6. State determination device.
A filter for collecting flying substances in the atmosphere, which is used in the flying state determination device according to any one of claims 1 to 7,
A filter for collecting an incoming substance, which has a plurality of divided areas, and in which at least a part of the plurality of divided areas is coated with a chemical that reacts only with a specific substance.
A filter for collecting flying substances in the atmosphere, which is used in the flying state determination device according to any one of claims 1 to 7,
A filter for collecting flying substances provided with a color chart including a predetermined reference color.
A computer-readable program for determining the airborne state of substances in the atmosphere.
Acquiring image information of a filter to which a substance flying into the atmosphere is attached;
Extracting color information from the acquired image information;
Determining a flying state of a substance in the atmosphere based on the extracted color information;
Causing the display means to display information indicating the flying state based on the determination result,
program.
The determination step is based on a value calculated from the extracted color information based on a predetermined determination formula, and the date of determination is relatively large in components related to yellow sand in the atmosphere relative to components of other flying substances. To determine whether it is a yellow sand day,
The program according to claim 10.
The determining step determines whether or not yellow sand and / or pollutants are flying in the atmosphere based on a value calculated based on a predetermined determination formula from the extracted color information.
The program according to claim 10.
The step of extracting the color information corrects the color information of the filter based on color information of a color chart including a predetermined reference color photographed under the same conditions as the filter.
The program according to any one of claims 10 to 12.