JP2015140962A - Ventilation air volume measuring system and ventilation air volume measuring method - Google Patents

Ventilation air volume measuring system and ventilation air volume measuring method Download PDF

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JP2015140962A
JP2015140962A JP2014013615A JP2014013615A JP2015140962A JP 2015140962 A JP2015140962 A JP 2015140962A JP 2014013615 A JP2014013615 A JP 2014013615A JP 2014013615 A JP2014013615 A JP 2014013615A JP 2015140962 A JP2015140962 A JP 2015140962A
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JP6248652B2 (en
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良三 ▲高▼須
良三 ▲高▼須
Ryozo Takasu
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Fujitsu Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a ventilation air volume measuring system and a ventilation air volume measuring method capable of conveniently measuring a ventilation air volume.SOLUTION: One preferred embodiment of a ventilation air volume measuring system comprises: outdoor concentration measuring means 11 for measuring an outdoor concentration of fine particle-like substance; indoor concentration measuring means 12 for measuring an indoor concentration of fine particle-like substance; amount of change calculating means 23 for calculating amount of change of outdoor concentration per unit time by applying the outdoor concentration measured by the outdoor concentration measuring means 11; and ventilation air volume calculating means 24 for calculating a ventilation air volume in a room by applying a result of measurement of the indoor concentration by the indoor concentration measuring means 12 for a prescribed period with a time when the amount of change exceeds a threshold as a reference, when the amount of change calculated by the amount of change calculating means 23 exceeds the threshold.

Description

本発明は、換気量測定システム及び換気量測定方法等に関する。   The present invention relates to a ventilation measurement system, a ventilation measurement method, and the like.

住居及び事業所の環境の管理等の目的のために、室の換気量の測定が行われる。換気量の測定では、トレーサとなる気体を室内で人為的に発生させ、その気体の濃度変化を追跡する方法がとられる。例えば、日本工業規格 JIS A1406に炭酸ガスを用いた屋内換気量測定方法についての規定がある。この屋内換気量測定方法では、室内において炭酸ガスをガスボンベなどから発生させ、その後の濃度の減少を測定するか、室内の在室者の呼気を利用して炭酸ガスを発生させ、その後の濃度の増加を測定する。   Room ventilation is measured for purposes such as residential and business environment management. In the measurement of the ventilation amount, a method is adopted in which a gas serving as a tracer is artificially generated indoors and the concentration change of the gas is tracked. For example, Japanese Industrial Standard JIS A1406 has provisions on a method for measuring indoor ventilation using carbon dioxide. In this indoor ventilation measurement method, carbon dioxide is generated indoors from a gas cylinder and the subsequent decrease in concentration is measured, or carbon dioxide is generated using the exhalation of the occupants in the room, and then the concentration of Measure the increase.

しかしながら、炭酸ガスの人為的な発生には大掛かりな機器が必要とされる。室内の在室者の呼気を利用する場合には、在室者の出入り状況及び在室者が呼出する炭酸ガスの量を考慮する必要がある。例えば日本工業規格 JIS A1406では、在室者の出入り状況を１０分間隔以内で調査することが推奨されている。更に、炭酸ガスの測定にも大掛かりな機器が必要とされる。このように、従来、換気量の測定は煩雑である。このため、換気量の測定が高頻度で行われることが望ましいにもかかわらず、その実現は容易でない。   However, large-scale equipment is required for artificial generation of carbon dioxide. When using the exhalation of a room occupant, it is necessary to consider the in / out status of the occupant and the amount of carbon dioxide gas that the occupant calls. For example, in Japanese Industrial Standard JIS A1406, it is recommended to investigate the in-and-out status of occupants within 10 minutes. Furthermore, large-scale equipment is required for measuring carbon dioxide gas. Thus, conventionally, the measurement of ventilation volume is complicated. For this reason, although it is desirable that the measurement of the ventilation volume be performed at a high frequency, the realization thereof is not easy.

建物の気密度の測定結果に基づいて換気量を測定する方法もあるが、この方法にも大掛かりな機器が必要とされる。このため、この方法で頻繁に換気量を測定することも容易ではない。   There is a method of measuring the ventilation amount based on the measurement result of the air density of the building, but this method also requires a large-scale device. For this reason, it is not easy to frequently measure the ventilation amount by this method.

特開２００７−１０３６３号公報JP 2007-10363 A 特開２００６−１２６１３７号公報JP 2006-126137 A

本発明の目的は、簡便に換気量を測定することができる換気量測定システム及び換気量測定方法等を提供することにある。   An object of the present invention is to provide a ventilation volume measuring system, a ventilation volume measuring method, and the like that can easily measure a ventilation volume.

換気量測定システムの一態様には、微小粒子状物質の室外濃度を測定する室外濃度測定手段と、微小粒子状物質の室内濃度を測定する室内濃度測定手段と、前記室外濃度測定手段により測定された室外濃度を用いて単位時間あたりの前記室外濃度の変化量を算出する変化量算出手段と、前記変化量算出手段により算出された変化量が閾値を超えている場合に、前記変化量が前記閾値を超えた時刻を基準とする所定の期間内の前記室内濃度測定手段による室内濃度の測定結果を用いて前記室における換気量を算出する換気量算出手段と、が含まれている。   One aspect of the ventilation measurement system includes an outdoor concentration measuring means for measuring the outdoor concentration of the fine particulate matter, an indoor concentration measuring means for measuring the indoor concentration of the fine particulate matter, and the outdoor concentration measuring means. Change amount calculating means for calculating a change amount of the outdoor concentration per unit time using the outdoor concentration, and when the change amount calculated by the change amount calculation means exceeds a threshold, the change amount is And a ventilation amount calculating means for calculating a ventilation amount in the room using a measurement result of the indoor concentration by the indoor concentration measuring means within a predetermined period with a time exceeding the threshold as a reference.

換気量測定方法の一態様では、微小粒子状物質の室外濃度を測定し、微小粒子状物質の室内濃度を測定し、前記測定された室外濃度を用いて単位時間あたりの前記室外濃度の変化量を算出し、前記算出された変化量が閾値を超えている場合に、前記変化量が前記閾値を超えた時刻を基準とする所定の期間内の前記室内濃度の測定結果を用いて前記室における換気量を算出する。   In one aspect of the ventilation amount measuring method, the outdoor concentration of the fine particulate matter is measured, the indoor concentration of the fine particulate matter is measured, and the amount of change in the outdoor concentration per unit time is measured using the measured outdoor concentration. And when the calculated amount of change exceeds a threshold value, the measurement result of the indoor concentration within a predetermined period with reference to the time when the amount of change exceeds the threshold value is used in the chamber. Calculate ventilation.

換気量測定装置の一態様には、微小粒子状物質の室外濃度を用いて単位時間あたりの前記室外濃度の変化量を算出する変化量算出手段と、前記変化量算出手段により算出された変化量が閾値を超えている場合に、前記変化量が前記閾値を超えた時刻を基準とする所定の期間内の微小粒子状物質の室内濃度の測定結果を用いて前記室における換気量を算出する換気量算出手段と、が含まれている。   One aspect of the ventilation volume measuring device includes a change amount calculating means for calculating a change amount of the outdoor concentration per unit time using the outdoor concentration of the fine particulate matter, and a change amount calculated by the change amount calculating means. Ventilation for calculating the ventilation volume in the room using the measurement result of the indoor concentration of the fine particulate matter within a predetermined period with respect to the time when the amount of change exceeds the threshold A quantity calculating means.

上記の換気量測定システム等によれば、微小粒子状物質の室外濃度及び室内濃度を用いているため、簡便に換気量を測定することができる。   According to the ventilation volume measuring system and the like, since the outdoor concentration and the indoor concentration of the fine particulate matter are used, the ventilation volume can be easily measured.

実施形態に係る換気量測定システムの構成を示す図である。It is a figure which shows the structure of the ventilation volume measuring system which concerns on embodiment. 換気量測定装置の構成を示す図である。It is a figure which shows the structure of a ventilation volume measuring apparatus. 換気量測定システムの動作を示すフローチャートである。It is a flowchart which shows operation | movement of a ventilation volume measuring system. 換気量測定システムの動作を示すフローチャートである。It is a flowchart which shows operation | movement of a ventilation volume measuring system. 微小粒子状物質の濃度の変化の一例を示す図である。It is a figure which shows an example of the change of the density | concentration of a microparticulate matter.

以下、実施形態について添付の図面を参照しながら具体的に説明する。図１は、実施形態に係る換気量測定システムの構成を示す図である。図２は、換気量測定装置の構成を示す図である。   Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. Drawing 1 is a figure showing the composition of the ventilation quantity measuring system concerning an embodiment. FIG. 2 is a diagram illustrating the configuration of the ventilation measurement device.

この換気量測定システムには、図１に示すように、微小粒子状物質の室外濃度を測定する室外濃度測定器１１、及び微小粒子状物質の室内濃度を測定する室内濃度測定器１２が設けられている。更に、室内濃度測定器１２が設けられた室における換気量を測定する換気量測定装置１０も設けられている。微小粒子状物質は、ＰＭ２．５とよばれることがある。   As shown in FIG. 1, this ventilation volume measuring system is provided with an outdoor concentration measuring device 11 for measuring the outdoor concentration of the fine particulate matter and an indoor concentration measuring device 12 for measuring the indoor concentration of the fine particulate matter. ing. Furthermore, a ventilation amount measuring device 10 for measuring a ventilation amount in a room provided with the indoor concentration measuring device 12 is also provided. The microparticulate material is sometimes referred to as PM2.5.

換気量測定装置１０には、図２に示すように、室外濃度記憶部２１、室内濃度記憶部２２、変化量算出部２３、換気量算出部２４、及び換気量記憶部２５が設けられている。室外濃度記憶部２１は、室外濃度測定器１１から入力された室外濃度のデータを記憶する。室内濃度記憶部２２は、室内濃度測定器１２から入力された室内濃度のデータを記憶する。変化量算出部２３は、微小粒子状物質の室外濃度を用いて単位時間あたりの室外濃度の変化量を算出する。変化量算出部２３は、例えば、室外濃度記憶部２１に記憶された室外濃度のデータから単位時間あたりの室外濃度の変化量を算出する。換気量算出部２４は、変化量算出部２３により算出された変化量が閾値を超えている場合、この変化量が閾値以上となった時刻の前後における微小粒子状物質の室内濃度の測定結果を用いて室内濃度測定器１２が設けられた室における換気量を算出する。換気量算出部２４は、例えば、室内濃度記憶部２２に記憶された室内濃度のデータから換気量を算出する。   As shown in FIG. 2, the ventilation volume measuring device 10 includes an outdoor concentration storage unit 21, an indoor concentration storage unit 22, a change amount calculation unit 23, a ventilation volume calculation unit 24, and a ventilation volume storage unit 25. . The outdoor concentration storage unit 21 stores outdoor concentration data input from the outdoor concentration measuring device 11. The indoor concentration storage unit 22 stores indoor concentration data input from the indoor concentration measuring device 12. The change amount calculation unit 23 calculates the amount of change in the outdoor concentration per unit time using the outdoor concentration of the fine particulate matter. For example, the change amount calculating unit 23 calculates the amount of change in outdoor concentration per unit time from the outdoor concentration data stored in the outdoor concentration storage unit 21. When the change amount calculated by the change amount calculation unit 23 exceeds the threshold value, the ventilation amount calculation unit 24 displays the measurement result of the indoor concentration of the fine particulate matter before and after the time when the change amount becomes equal to or greater than the threshold value. The ventilation amount in the room in which the indoor concentration measuring device 12 is provided is calculated. For example, the ventilation amount calculation unit 24 calculates the ventilation amount from the indoor concentration data stored in the indoor concentration storage unit 22.

次に、換気量測定システムの動作について説明する。図３は、換気量測定システムの動作、特に室外濃度及び室内濃度の収集に関する動作を示すフローチャートである。図４は、換気量測定システムの動作、特に換気量の算出に関する動作を示すフローチャートである。   Next, the operation of the ventilation measurement system will be described. FIG. 3 is a flowchart showing the operation of the ventilation measurement system, particularly the operation related to the collection of outdoor concentration and indoor concentration. FIG. 4 is a flowchart showing the operation of the ventilation amount measuring system, particularly the operation relating to the calculation of the ventilation amount.

先ず、図３に示すように、ステップＳ１１において、室外濃度測定器１１が微小粒子状物質の室外濃度を測定し、室内濃度測定器１２が微小粒子状物質の室内濃度を測定する。   First, as shown in FIG. 3, in step S11, the outdoor concentration measuring device 11 measures the outdoor concentration of the fine particulate matter, and the indoor concentration measuring device 12 measures the indoor concentration of the fine particulate matter.

次いで、ステップＳ１２において、室外濃度のデータ及び室内濃度のデータを換気量測定装置１０が受け取り、室外濃度記憶部２１が室外濃度のデータを記憶し、室内濃度記憶部２２が室内濃度のデータを記憶する。   Next, in step S12, the outdoor concentration data and the indoor concentration data are received by the ventilation amount measuring device 10, the outdoor concentration storage unit 21 stores the outdoor concentration data, and the indoor concentration storage unit 22 stores the indoor concentration data. To do.

そして、ステップＳ１１での室外濃度及び室内濃度の測定が行われてから所定の時間Δｔが経過すると（ステップＳ１３）、再度、ステップＳ１１での室外濃度及び室内濃度の測定が行われる。   Then, when a predetermined time Δt has elapsed since the measurement of the outdoor concentration and the indoor concentration in step S11 (step S13), the outdoor concentration and the indoor concentration in step S11 are measured again.

このようにして、時間Δｔの経過毎に室外濃度のデータ及び室内濃度のデータが換気量測定装置１０に取得される。時間Δｔの値は特に限定されず、例えば１秒間以上１分間以下である。   In this way, outdoor concentration data and indoor concentration data are acquired by the ventilation measuring device 10 every time the time Δt elapses. The value of the time Δt is not particularly limited and is, for example, 1 second or more and 1 minute or less.

また、換気量測定装置１０は、図４に示すフローチャートに沿って、動作の開始から所定の時間ΔＴが経過するたびに（ステップＳ２１）、室外濃度のデータ及び室内濃度のデータを用いて換気量を算出する。   In addition, the ventilation volume measuring device 10 uses the outdoor concentration data and the indoor concentration data every time a predetermined time ΔT elapses from the start of the operation (step S21) according to the flowchart shown in FIG. Is calculated.

先ず、ステップＳ２２において、変化量算出部２３が時刻「ｔ」における室外濃度の単位時間あたりの変化量を算出する（ステップＳ２３）。時刻「ｔ」の初期値は、例えばその時刻から時間ΔＴ前の時刻である。そして、算出された変化量が閾値を超えていなければ（ステップＳ２３）、時刻「ｔ」から時間Δｔ後の時刻における室外濃度の単位時間あたりの変化量を算出する（ステップＳ２８及びＳ２２）。閾値は特に限定されず、例えば５μｇ／ｍ3である。 First, in step S22, the change amount calculation unit 23 calculates the change amount per unit time of the outdoor concentration at time “t” (step S23). The initial value of the time “t” is, for example, the time before the time ΔT from that time. If the calculated change amount does not exceed the threshold value (step S23), the change amount per unit time of the outdoor concentration at the time after the time Δt from the time “t” is calculated (steps S28 and S22). The threshold value is not particularly limited and is, for example, 5 μg / m 3 .

変化量が閾値を超えている場合（ステップＳ２３）、ステップＳ２４において、換気量算出部２４が、時刻「ｔ」における室外濃度Ｃ0、時刻「ｔ−α」における室内濃度Ｃt-α、及び時刻「ｔ＋α」における室内濃度Ｃt+αを取得する。この例では、変化量が閾値を超えた時刻を基準とする所定の期間は時刻「ｔ−α」から時刻「ｔ＋α」までの期間である。αの値は特に限定されず、例えば５分間以上６分間以下である。 If the amount of change exceeds the threshold value (step S23), in step S24, the ventilation amount calculating unit 24, the outdoor concentration C 0 at time "t", the time indoor concentration in the "t-alpha" C t-alpha, and The indoor concentration C t + α at the time “t + α” is acquired. In this example, the predetermined period based on the time when the change amount exceeds the threshold is a period from time “t−α” to time “t + α”. The value of α is not particularly limited, and is, for example, 5 minutes or more and 6 minutes or less.

次いで、ステップＳ２５において、換気量算出部２４が室における換気量Ｑ（ｍ3／ｈ）を算出する。換気量Ｑの算出には、例えば次の式を用いることができる。この式は、Seidel式に基づいている。ここで、Ｖは室の気積（ｍ3）である。 Next, in step S25, the ventilation amount calculation unit 24 calculates a ventilation amount Q (m 3 / h) in the room. For example, the following equation can be used to calculate the ventilation amount Q. This equation is based on the Seidel equation. Here, V is the chamber volume (m 3 ).

Figure 2015140962
Figure 2015140962

その後、ステップＳ２６において、換気量記憶部２５が、換気量Ｑ及び時刻「ｔ」を記憶する。そして、所定の範囲内にあるすべての時刻についての処理が終了していなければ（ステップＳ２７）、時刻「ｔ」から時間Δｔ後の時刻における、室外濃度の単位時間あたりの変化量を算出する（ステップＳ２８及びＳ２２）。所定の範囲は特に限定されず、例えば、時刻「ｔ」の初期値で表される時刻をｔ0、そこから時間ΔＴ後の時刻をｔ1としたときの時刻ｔ0から時刻ｔ1までの範囲である。 Thereafter, in step S <b> 26, the ventilation volume storage unit 25 stores the ventilation volume Q and the time “t”. If processing for all times within the predetermined range has not been completed (step S27), the amount of change per unit time of outdoor concentration at time Δt after time “t” is calculated (step S27). Steps S28 and S22). The predetermined range is not particularly limited. For example, the time range from the time t 0 to the time t 1 when the time represented by the initial value of the time “t” is t 0 and the time after the time ΔT is t 1 is used. It is a range.

このように、本実施形態では、大気中に存在する微小粒子状物質（ＰＭ２．５）がトレーサとして使用される。図５に、微小粒子状物質の濃度の変化の一例を示す。図５に示すように、微小粒子状物質の濃度は自然環境の変化に伴って常に変化している。微小粒子状物質は室外で発生し、喫煙等の意図的な行動が行われない限りは室内で発生しない。また、微小粒子状物質は、径が大きい粒子とは異なり、大気中で沈降しない。このため、室内外間での換気に伴って、室内濃度は室外濃度に付随して変化する。また、微小粒子状物質の濃度の単位時間あたりの変化量が小さい時間帯及び大きい時間帯があるが、本実施形態では、所定の閾値を超えている時刻について換気量Ｑが算出される。このため、誤差を抑制することができる。   Thus, in this embodiment, the fine particulate matter (PM2.5) which exists in air | atmosphere is used as a tracer. FIG. 5 shows an example of a change in the concentration of the fine particulate matter. As shown in FIG. 5, the concentration of the fine particulate matter constantly changes with changes in the natural environment. Microparticulate matter is generated outside the room and is not generated indoors unless intentional behavior such as smoking is performed. In addition, unlike a particle having a large diameter, a fine particulate material does not settle in the atmosphere. For this reason, the indoor concentration changes accompanying the outdoor concentration with ventilation between the inside and outside of the room. Further, although there are a time zone in which the amount of change per unit time of the concentration of the fine particulate matter is small and a time zone in which it is large, the ventilation amount Q is calculated for a time exceeding a predetermined threshold in this embodiment. For this reason, an error can be suppressed.

このような本実施形態によれば、従来の方法と比較して、人為的にトレーサガスを発生させる必要がなく、そのための手間及び装置を排除することができる。また、炭酸ガスを用いる従来の方法では、測定者等の在室者の呼気の影響を受けるが、そのような影響も排除することができる。更に、閾値にもよるが、単位時間あたりの変化量は頻繁に５μｇ／ｍ3を超えるため、換気量の日変動及び季節変動に関する測定データを蓄積することも可能となる。 According to the present embodiment as described above, it is not necessary to generate the tracer gas artificially as compared with the conventional method, and it is possible to eliminate the labor and apparatus for that purpose. In addition, the conventional method using carbon dioxide gas is affected by exhalation of a room occupant such as a measurer, but such influence can be eliminated. Furthermore, although depending on the threshold value, the amount of change per unit time frequently exceeds 5 μg / m 3 , it is possible to accumulate measurement data relating to daily and seasonal fluctuations in ventilation.

室外濃度測定器１１及び室内濃度測定器１２としては、例えば、微小粒子状物質による散乱光を検出して微小粒子状物質の濃度を測定する測定器を用いることができる。この測定器は、１秒〜１分程度の短い時間間隔での測定に適している。   As the outdoor concentration measuring device 11 and the indoor concentration measuring device 12, for example, a measuring device that detects the scattered light by the fine particulate matter and measures the concentration of the fine particulate matter can be used. This measuring instrument is suitable for measurement at a short time interval of about 1 second to 1 minute.

図１では、換気量測定装置１０が室内にあるが、換気量測定装置１０が設けられる場所は限定されない。例えば、屋外に設けられてもよく、室内濃度測定器１２が設けられた室とは異なる室に設けられてもよい。また、換気量測定装置１０と室外濃度測定器１１及び室内濃度測定器１２との間のデータの伝送は、有線で行われてもよく、無線で行われてもよい。換気量測定装置１０は、例えば自動的、かつ即時に室外濃度のデータ及び室内濃度のデータを収集することができる。また、換気量測定装置１０はこれらデータを自動的に処理し、換気量Ｑを継続的に算出することができる。   In FIG. 1, the ventilation amount measuring device 10 is in the room, but the place where the ventilation amount measuring device 10 is provided is not limited. For example, it may be provided outdoors or in a room different from the room in which the indoor concentration measuring device 12 is provided. Further, data transmission between the ventilation measurement device 10 and the outdoor concentration measuring device 11 and the indoor concentration measuring device 12 may be performed by wire or wirelessly. The ventilation volume measuring device 10 can collect outdoor concentration data and indoor concentration data automatically and immediately, for example. Moreover, the ventilation volume measuring apparatus 10 can process these data automatically, and can calculate the ventilation volume Q continuously.

換気量測定装置１０に接続される室外濃度測定器１１及び室内濃度測定器１２の数は限定されない。例えば、室内の空気の均質性を重視したい場合、特定の場所に注目した場合等には、室内に複数の室内濃度測定器１２が設けられることが好ましい。   The number of outdoor concentration measuring devices 11 and indoor concentration measuring devices 12 connected to the ventilation measuring device 10 is not limited. For example, when importance is attached to the homogeneity of indoor air, or when attention is paid to a specific place, it is preferable to provide a plurality of indoor concentration measuring devices 12 in the room.

室内及び室外の例は建物の内側及び外側、つまり屋内及び屋外である。室内及び室外の他の例は美術館の展示ケースの内側及び外側である。微小粒子状物質は通常の中性能フィルター程度では除去されないので、このような展示ケースの内外間の換気量を測定することも可能である。   Examples of indoor and outdoor are inside and outside the building, ie indoors and outdoors. Other examples of indoor and outdoor are inside and outside the museum display case. Since the fine particulate matter is not removed by the normal medium performance filter, it is possible to measure the ventilation between the inside and outside of the display case.

以下、本発明の諸態様を付記としてまとめて記載する。   Hereinafter, various aspects of the present invention will be collectively described as supplementary notes.

（付記１）
微小粒子状物質の室外濃度を測定する室外濃度測定手段と、
微小粒子状物質の室内濃度を測定する室内濃度測定手段と、
前記室外濃度測定手段により測定された室外濃度を用いて単位時間あたりの前記室外濃度の変化量を算出する変化量算出手段と、
前記変化量算出手段により算出された変化量が閾値を超えている場合に、前記変化量が前記閾値を超えた時刻を基準とする所定の期間内の前記室内濃度測定手段による室内濃度の測定結果を用いて前記室における換気量を算出する換気量算出手段と、
を有することを特徴とする換気量測定システム。 (Appendix 1)
An outdoor concentration measuring means for measuring the outdoor concentration of the fine particulate matter;
Indoor concentration measuring means for measuring the indoor concentration of microparticulate matter;
A change amount calculating means for calculating a change amount of the outdoor concentration per unit time using the outdoor concentration measured by the outdoor concentration measuring means;
When the change amount calculated by the change amount calculation means exceeds a threshold value, the indoor concentration measurement result by the indoor concentration measurement means within a predetermined period based on the time when the change amount exceeds the threshold value A ventilation amount calculating means for calculating a ventilation amount in the room using
A ventilation measurement system characterized by comprising:

（付記２）
前記換気量算出手段は、前記変化量が前記閾値を超えた時刻の前後における前記室内濃度の測定結果を用いて前記室における換気量を算出することを特徴とする付記１に記載の換気量測定システム。 (Appendix 2)
The ventilation volume measurement according to appendix 1, wherein the ventilation volume calculation means calculates the ventilation volume in the room using the measurement result of the indoor concentration before and after the time when the change amount exceeds the threshold value. system.

（付記３）
前記室外濃度測定手段から入力された室外濃度のデータを記憶する室外濃度記憶手段と、
前記室内濃度測定手段から入力された室内濃度のデータを記憶する室内濃度記憶手段と、
を有し、
前記変化量算出手段は前記室外濃度記憶手段に記憶された前記室外濃度のデータから前記変化量を算出し、
前記換気量算出手段は前記室内濃度記憶手段に記憶された前記室内濃度のデータから前記換気量を算出することを特徴とする付記１又は２に記載の換気量測定システム。 (Appendix 3)
Outdoor concentration storage means for storing outdoor concentration data input from the outdoor concentration measuring means;
Indoor concentration storage means for storing indoor concentration data input from the indoor concentration measuring means;
Have
The change amount calculating means calculates the change amount from the outdoor concentration data stored in the outdoor concentration storage means,
The ventilation volume measuring system according to appendix 1 or 2, wherein the ventilation volume calculating means calculates the ventilation volume from the indoor concentration data stored in the indoor concentration storage means.

（付記４）
前記室外濃度測定手段は、微小粒子状物質からの散乱光を検出して前記室外濃度を測定し、
前記室内濃度測定手段は、微小粒子状物質からの散乱光を検出して前記室内濃度を測定することを特徴とする付記１乃至３のいずれか１項に記載の換気量測定システム。 (Appendix 4)
The outdoor concentration measuring means detects scattered light from the fine particulate matter and measures the outdoor concentration,
The ventilation volume measuring system according to any one of appendices 1 to 3, wherein the indoor concentration measuring means detects scattered light from a microparticulate matter to measure the indoor concentration.

（付記５）
前記室外濃度測定手段及び前記室内濃度測定手段は、１秒間以上１分間以下の間隔で、それぞれ前記室外濃度、前記室内濃度を測定することを特徴とする付記１乃至４のいずれか１項に記載の換気量測定システム。 (Appendix 5)
5. The outdoor concentration measuring unit and the indoor concentration measuring unit measure the outdoor concentration and the indoor concentration, respectively, at intervals of 1 second or more and 1 minute or less. Ventilation volume measuring system.

（付記６）
微小粒子状物質の室外濃度を測定する工程と、
微小粒子状物質の室内濃度を測定する工程と、
前記測定された室外濃度を用いて単位時間あたりの前記室外濃度の変化量を算出する工程と、
前記算出された変化量が閾値を超えている場合に、前記変化量が前記閾値を超えた時刻を基準とする所定の期間内の前記室内濃度の測定結果を用いて前記室における換気量を算出する工程と、
を有することを特徴とする換気量測定方法。 (Appendix 6)
Measuring the outdoor concentration of microparticulate matter;
Measuring the indoor concentration of microparticulate matter;
Calculating the amount of change in the outdoor concentration per unit time using the measured outdoor concentration;
When the calculated amount of change exceeds a threshold value, the ventilation amount in the room is calculated using the measurement result of the indoor concentration within a predetermined period based on the time when the amount of change exceeds the threshold value. And a process of
A method for measuring a ventilation amount, comprising:

（付記７）
前記換気量を算出する工程は、前記変化量が前記閾値を超えた時刻の前後における前記室内濃度の測定結果を用いて前記室における換気量を算出する工程を有することを特徴とする付記６に記載の換気量測定方法。 (Appendix 7)
The step of calculating the ventilation amount includes the step of calculating the ventilation amount in the room using the measurement result of the indoor concentration before and after the time when the amount of change exceeds the threshold value. The ventilation volume measuring method of description.

（付記８）
前記室外濃度及び前記室内濃度を１秒間以上１分間以下の間隔で測定することを特徴とする付記６又は７に記載の換気量測定方法。 (Appendix 8)
The ventilation volume measuring method according to appendix 6 or 7, wherein the outdoor concentration and the indoor concentration are measured at intervals of 1 second to 1 minute.

（付記９）
微小粒子状物質の室外濃度を用いて単位時間あたりの前記室外濃度の変化量を算出する変化量算出手段と、
前記変化量算出手段により算出された変化量が閾値を超えている場合に、前記変化量が前記閾値を超えた時刻を基準とする所定の期間内の微小粒子状物質の室内濃度の測定結果を用いて前記室における換気量を算出する換気量算出手段と、
を有することを特徴とする換気量測定装置。 (Appendix 9)
A change amount calculating means for calculating a change amount of the outdoor concentration per unit time using the outdoor concentration of the fine particulate matter;
When the amount of change calculated by the amount-of-change calculating means exceeds a threshold, the measurement result of the indoor concentration of the fine particulate matter within a predetermined period with reference to the time when the amount of change exceeds the threshold. A ventilation amount calculating means for calculating a ventilation amount in the room using,
A ventilation measurement device characterized by comprising:

（付記１０）
前記換気量算出手段は、前記変化量が前記閾値を超えた時刻の前後における前記室内濃度の測定結果を用いて前記室における換気量を算出することを特徴とする付記９に記載の換気量測定装置。 (Appendix 10)
The ventilation volume measurement according to appendix 9, wherein the ventilation volume calculation means calculates a ventilation volume in the room using measurement results of the indoor concentration before and after the time when the change amount exceeds the threshold value. apparatus.

（付記１１）
前記室外濃度を測定する室外濃度測定手段から入力された室外濃度のデータを記憶する室外濃度記憶手段と、
前記室内濃度を測定する室内濃度測定手段から入力された室内濃度のデータを記憶する室内濃度記憶手段と、
を有し、
前記変化量算出手段は前記室外濃度記憶手段に記憶された前記室外濃度のデータから前記変化量を算出し、
前記換気量算出手段は前記室内濃度記憶手段に記憶された前記室内濃度のデータから前記換気量を算出することを特徴とする付記９又は１０に記載の換気量測定装置。 (Appendix 11)
Outdoor concentration storage means for storing outdoor concentration data input from the outdoor concentration measurement means for measuring the outdoor concentration;
Indoor concentration storage means for storing indoor concentration data input from the indoor concentration measuring means for measuring the indoor concentration;
Have
The change amount calculating means calculates the change amount from the outdoor concentration data stored in the outdoor concentration storage means,
11. The ventilation volume measuring device according to appendix 9 or 10, wherein the ventilation volume calculating means calculates the ventilation volume from the indoor concentration data stored in the indoor concentration storage means.

１０：換気量測定装置
１１：室外濃度測定器
１２：室内濃度測定器
２１：室外濃度記憶部
２２：室内濃度記憶部
２３：変化量算出部
２４：換気量測定部
２５：換気量記憶部 10: Ventilation measuring device 11: Outdoor concentration measuring device 12: Indoor concentration measuring device 21: Outdoor concentration storing unit 22: Indoor concentration storing unit 23: Change amount calculating unit 24: Ventilation measuring unit 25: Ventilation storing unit

Claims (7)

微小粒子状物質の室外濃度を測定する室外濃度測定手段と、
微小粒子状物質の室内濃度を測定する室内濃度測定手段と、
前記室外濃度測定手段により測定された室外濃度を用いて単位時間あたりの前記室外濃度の変化量を算出する変化量算出手段と、
前記変化量算出手段により算出された変化量が閾値を超えている場合に、前記変化量が前記閾値を超えた時刻を基準とする所定の期間内の前記室内濃度測定手段による室内濃度の測定結果を用いて前記室における換気量を算出する換気量算出手段と、
を有することを特徴とする換気量測定システム。 An outdoor concentration measuring means for measuring the outdoor concentration of the fine particulate matter;
Indoor concentration measuring means for measuring the indoor concentration of microparticulate matter;
A change amount calculating means for calculating a change amount of the outdoor concentration per unit time using the outdoor concentration measured by the outdoor concentration measuring means;
When the change amount calculated by the change amount calculation means exceeds a threshold value, the indoor concentration measurement result by the indoor concentration measurement means within a predetermined period based on the time when the change amount exceeds the threshold value A ventilation amount calculating means for calculating a ventilation amount in the room using
A ventilation measurement system characterized by comprising: 前記換気量算出手段は、前記変化量が前記閾値を超えた時刻の前後における前記室内濃度の測定結果を用いて前記室における換気量を算出することを特徴とする請求項１に記載の換気量測定システム。   The ventilation volume according to claim 1, wherein the ventilation volume calculation means calculates the ventilation volume in the room using measurement results of the indoor concentration before and after the time when the change amount exceeds the threshold. Measuring system. 前記室外濃度測定手段から入力された室外濃度のデータを記憶する室外濃度記憶手段と、
前記室内濃度測定手段から入力された室内濃度のデータを記憶する室内濃度記憶手段と、
を有し、
前記変化量算出手段は前記室外濃度記憶手段に記憶された前記室外濃度のデータから前記変化量を算出し、
前記換気量算出手段は前記室内濃度記憶手段に記憶された前記室内濃度のデータから前記換気量を算出することを特徴とする請求項１又は２に記載の換気量測定システム。 Outdoor concentration storage means for storing outdoor concentration data input from the outdoor concentration measuring means;
Indoor concentration storage means for storing indoor concentration data input from the indoor concentration measuring means;
Have
The change amount calculating means calculates the change amount from the outdoor concentration data stored in the outdoor concentration storage means,
The ventilation volume measuring system according to claim 1 or 2, wherein the ventilation volume calculating means calculates the ventilation volume from the indoor concentration data stored in the indoor concentration storage means. 微小粒子状物質の室外濃度を測定する工程と、
微小粒子状物質の室内濃度を測定する工程と、
前記測定された室外濃度を用いて単位時間あたりの前記室外濃度の変化量を算出する工程と、
前記算出された変化量が閾値を超えている場合に、前記変化量が前記閾値を超えた時刻を基準とする所定の期間内の前記室内濃度の測定結果を用いて前記室における換気量を算出する工程と、
を有することを特徴とする換気量測定方法。 Measuring the outdoor concentration of microparticulate matter;
Measuring the indoor concentration of microparticulate matter;
Calculating the amount of change in the outdoor concentration per unit time using the measured outdoor concentration;
When the calculated amount of change exceeds a threshold value, the ventilation amount in the room is calculated using the measurement result of the indoor concentration within a predetermined period based on the time when the amount of change exceeds the threshold value. And a process of
A method for measuring a ventilation amount, comprising: 前記換気量を算出する工程は、前記変化量が前記閾値を超えた時刻の前後における前記室内濃度の測定結果を用いて前記室における換気量を算出する工程を有することを特徴とする請求項４に記載の換気量測定方法。   5. The step of calculating the ventilation amount includes a step of calculating a ventilation amount in the room using measurement results of the indoor concentration before and after the time when the amount of change exceeds the threshold value. Ventilation measurement method described in 1. 微小粒子状物質の室外濃度を用いて単位時間あたりの前記室外濃度の変化量を算出する変化量算出手段と、
前記変化量算出手段により算出された変化量が閾値を超えている場合に、前記変化量が前記閾値を超えた時刻を基準とする所定の期間内の微小粒子状物質の室内濃度の測定結果を用いて前記室における換気量を算出する換気量算出手段と、
を有することを特徴とする換気量測定装置。 A change amount calculating means for calculating a change amount of the outdoor concentration per unit time using the outdoor concentration of the fine particulate matter;
When the amount of change calculated by the amount-of-change calculating means exceeds a threshold, the measurement result of the indoor concentration of the fine particulate matter within a predetermined period with reference to the time when the amount of change exceeds the threshold. A ventilation amount calculating means for calculating a ventilation amount in the room using,
A ventilation measurement device characterized by comprising: 前記換気量算出手段は、前記変化量が前記閾値を超えた時刻の前後における前記室内濃度の測定結果を用いて前記室における換気量を算出することを特徴とする請求項６に記載の換気量測定装置。   The ventilation volume according to claim 6, wherein the ventilation volume calculation means calculates the ventilation volume in the room using measurement results of the indoor concentration before and after the time when the change amount exceeds the threshold value. measuring device.
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