JP4830422B2 - Ventilation equipment - Google Patents

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JP4830422B2
JP4830422B2 JP2005277752A JP2005277752A JP4830422B2 JP 4830422 B2 JP4830422 B2 JP 4830422B2 JP 2005277752 A JP2005277752 A JP 2005277752A JP 2005277752 A JP2005277752 A JP 2005277752A JP 4830422 B2 JP4830422 B2 JP 4830422B2
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activity
ventilation
induced voltage
activity amount
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篤史 森本
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Panasonic Corp
Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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Description

本発明は、人の活動量を検出する方法とその検出した人の活動量により基準換気量に加算制御する換気装置に関する。   The present invention relates to a method for detecting the amount of activity of a person and a ventilator for adding and controlling a reference ventilation amount based on the detected amount of activity of the person.

近年、換気扇の制御において、燃焼機器により発生する水素、一酸化炭素や生ゴミ臭、調理臭、また特定場所に人が集中した際の人いきれなどを抑制、防止し、居住空間の快適性を確保することができる換気装置が求められている。また、建築基準法の改定に伴い、各室に換気装置の設置が義務付けられるなどの社会的背景もある。   In recent years, in the control of ventilation fans, hydrogen, carbon monoxide, garbage odors, cooking odors generated by combustion equipment, and odors when people concentrate on specific places are controlled and prevented to ensure comfortable living spaces. There is a need for a ventilator that can do that. In addition, there is a social background, such as the mandatory installation of ventilation equipment in each room with the revision of the Building Standard Law.

従来、この種の空調装置に関しては、室内の居住者の有無及び人数を正確に認識すると同時にそれらの態様を判定し、その態様に対応して空調状態を制御すると同時に適切に換気するものが知られている(例えば、特許文献1参照)。   Conventionally, this type of air conditioner is known to accurately recognize the presence and number of occupants in the room and simultaneously determine their mode, control the air conditioning state according to the mode and simultaneously ventilate appropriately. (For example, refer to Patent Document 1).

以下、その空調装置について図23及び図24を参照しながら説明する。   Hereinafter, the air conditioner will be described with reference to FIGS.

図23、図24に示すように、室内入口に人体の移動方向に沿って略直線上に複数個設けられた人体検知センサ101と、室内の炭酸ガスを感知する炭酸ガスセンサ102と、人体感知センサ101からの信号を受信して人体の入出を認識する第1の認識手段103と、炭酸ガスセンサ102が感知した炭酸ガス濃度から人体の存在を認識する第2の認識手段104と、第1の認識信号と第2の認識信号とを受信して人体の存在の有無を判定する判定手段105とを備え、判定手段105からの判定信号を受信して空調機器106を制御する制御手段107を設けており、空調制御するように構成されている。   As shown in FIGS. 23 and 24, a plurality of human body detection sensors 101 provided substantially linearly along the moving direction of the human body at the entrance of the room, a carbon dioxide sensor 102 for detecting carbon dioxide in the room, and a human body detection sensor First recognition means 103 that receives a signal from 101 and recognizes the entry / exit of the human body, second recognition means 104 that recognizes the presence of the human body from the carbon dioxide concentration sensed by the carbon dioxide sensor 102, and first recognition A determination unit 105 that receives the signal and the second recognition signal to determine the presence or absence of a human body, and includes a control unit 107 that receives the determination signal from the determination unit 105 and controls the air conditioner 106. And is configured to control air conditioning.

また、換気装置の制御装置として、焦電形赤外線センサを用いて検出される人体の活動量に基づいて、最適に換気量制御を行い、室内を適正なレベルのガス濃度に維持することができ、快適性の向上を図るようにするものが知られている(例えば、特許文献2参照)。   In addition, as a control device for the ventilation device, it can optimally control the ventilation amount based on the amount of activity of the human body detected using a pyroelectric infrared sensor, and can maintain the indoor gas level at an appropriate level. A device that improves comfort is known (for example, see Patent Document 2).

以下、その換気装置の制御装置について、図25を参照しながら説明する。   Hereinafter, the control device of the ventilation device will be described with reference to FIG.

図25に示すように、焦電形赤外線センサよりなり室内の人体の動きを検出して人体検出パルス信号を出力する人体検出手段108と、所定時間の計時を行なう第1のタイマー手段109と、人体検出パルス信号の数を第1のタイマー手段109により所定時間積算し、その積算パルス数に応じて人体の活動量を判定する活動量判定手段110と、活動量判定手段110より出力される活動量レベル信号に応じて換気量の制御を行なう第1の換気量制御手段111を備えている。   As shown in FIG. 25, a human body detecting means 108 comprising a pyroelectric infrared sensor for detecting the movement of a human body in the room and outputting a human body detection pulse signal, a first timer means 109 for measuring a predetermined time, The number of human body detection pulse signals is accumulated for a predetermined time by the first timer means 109, and the activity amount determination means 110 for determining the amount of activity of the human body according to the number of accumulated pulses, and the activity output from the activity amount determination means 110 First ventilation amount control means 111 that controls the ventilation amount according to the amount level signal is provided.

特開2000−234782号公報JP 2000-234782 A 特開平8−75203号公報JP-A-8-75203

このような従来の空調装置では、人体の存在、活動量を精度良く検出するために人体検知センサと炭酸ガスセンサを有しており、コストが高くなるという課題があり、さらに常時一定量の換気を行なうものではなく、換気量ゼロから換気能力最大までを制御するものであることから、常時換気設備と併用する必要があることから更なるコスト高が発生するという課題があり、より低コストで人体の存在、活動量を判定すると同時に換気量制御を行なうことが要求されている。   Such a conventional air conditioner has a human body sensor and a carbon dioxide gas sensor in order to accurately detect the presence of the human body and the amount of activity, and there is a problem that the cost becomes high, and a constant amount of ventilation is always provided. Because it is not intended to be performed but is controlled from zero ventilation to maximum ventilation capacity, there is a problem that further cost increases due to the need to use it together with ventilation equipment at all times. It is required to control the ventilation rate at the same time as determining the presence and activity level of the stool.

また、このような従来の換気装置の制御装置では、常時換気設備との併用が必要であることと、人体の活動量を所定時間内の検出パルス数のみで検出しており、移動した距離が正確に特定できず、実際の活動量に見合った換気量制御を行なうことができないという課題があり、より正確に人の移動を検出し、活動量を算出すると同時に基準換気量を満足し、かつ最適な換気量制御を行なうことが要求されている。   In addition, in such a conventional ventilator control device, it is necessary to always use in combination with ventilation equipment, and the amount of activity of the human body is detected only by the number of detected pulses within a predetermined time, and the distance traveled is There is a problem that it is not possible to specify accurately and it is not possible to control the ventilation volume according to the actual activity amount, more accurately detecting the movement of the person, calculating the activity amount, and at the same time satisfying the reference ventilation amount, and There is a demand for optimal ventilation control.

本発明は、このような従来の課題を解決するものであり、人体の活動量を低コストで、かつ正確に検出し、基準換気量に加算制御を行なうことができる換気装置を提供することを目的としている。   The present invention solves such a conventional problem, and provides a ventilator capable of accurately detecting the amount of activity of a human body at low cost and performing addition control on a reference ventilation amount. It is aimed.

本発明の換気装置は、人の活動量を検知する活動量検知手段と、前記活動量検知手段により検知した人の活動量に応じて予め記憶した室容積に対応する基準換気量に加算するように制御する換気量制御手段を備えた換気装置であって、前記活動量検知手段は、少なくとも2つ以上の互いに相異なる検知領域を有する赤外線センサと、前記赤外線センサの誘起電圧の各領域における変化量から活動量を判定する活動量判定手段を備え、前記人の活動量は、前記赤外線センサの誘起電圧の各領域における極小値の発生タイミングから判定する構成としたものである。 The ventilator according to the present invention adds an activity amount detecting means for detecting a person's activity amount and a reference ventilation amount corresponding to a room volume stored in advance according to the activity amount of the person detected by the activity amount detecting means. The activity amount detection means includes an infrared sensor having at least two different detection areas, and changes in the induced voltage of the infrared sensor in each area. Activity amount determination means for determining an activity amount from the amount is provided, and the activity amount of the person is determined from the generation timing of the minimum value in each region of the induced voltage of the infrared sensor.

この手段により、赤外線センサの誘起電圧の変化量から直接活動量を判定するため、人の在不在情報に変換、あるいは移動した距離を演算することなく、簡易的な構成で活動量を検出でき、検出した活動量に応じた換気量を基準換気量に加算することにより、より安価でかつ快適性制御に優れた換気装置が得られる。   By this means, in order to determine the amount of activity directly from the amount of change in the induced voltage of the infrared sensor, it is possible to detect the amount of activity with a simple configuration without calculating the distance traveled or converted into human presence information, By adding the ventilation amount according to the detected activity amount to the reference ventilation amount, a ventilation device that is more inexpensive and excellent in comfort control can be obtained.

また、検知対象領域が広い場合であっても、各領域における赤外線センサの配置と誘起電圧の時間変化量から、赤外線センサの検知領域を跨ぐ動きがあった場合でも精度良く活動量を判定することができ、簡単な構成でかつ精度の高い換気量制御を行なうことができる換気装置が得られる。 Even if the detection target area is wide, the amount of activity can be accurately determined from the arrangement of the infrared sensor in each area and the amount of time change of the induced voltage even when there is a movement across the detection area of the infrared sensor. Therefore, a ventilation device that can perform ventilation volume control with a simple configuration and high accuracy is obtained.

さらに、検知対象領域が広い場合であっても、各領域における赤外線センサの活動量の検出において画像処理を必要とせず、簡易的な構成で活動量を検出することができ、さらに精度の高い換気量制御を行なうことができる換気装置が得られる。 Furthermore, even if the detection target area is wide, it is possible to detect the activity amount with a simple configuration without requiring image processing in the detection of the activity amount of the infrared sensor in each region , and ventilation with higher accuracy. A ventilation device capable of volume control is obtained.

本発明によれば、人の活動量を検知する活動量検知手段と、前記活動量検知手段により検知した人の活動量に応じて予め記憶した室容積に対応する基準換気量に加算するように制御する換気量制御手段を備えた換気装置であって、前記活動量検知手段は、少なくとも2つ以上の互いに相異なる検知領域を有する赤外線センサと、前記赤外線センサの誘起電圧の各領域における変化量から活動量を判定する活動量判定手段を備え、前記人の活動量は、前記赤外線センサの誘起電圧の各領域における極小値の発生タイミングから判定する構成とすることで、赤外線センサの誘起電圧の変化量から直接活動量を判定するため、人の在不在情報に変換、あるいは移動した距離を演算することなく、簡易的な構成で活動量を検出でき、検出した活動量に応じた換気量を基準換気量に加算することにより、より安価でかつ快適性制御に優れた換気装置を提供できる。 According to the present invention, the activity amount detecting means for detecting the activity amount of the person and the reference ventilation amount corresponding to the room volume stored in advance according to the activity amount of the person detected by the activity amount detecting means are added. It is a ventilation apparatus provided with the ventilation amount control means to control, Comprising: The said active mass detection means is an infrared sensor which has an at least 2 or more mutually different detection area | region, and the variation | change_quantity in each area | region of the induced voltage of the said infrared sensor The activity amount determination means for determining the activity amount from the infrared sensor, the activity amount of the person is determined from the generation timing of the minimum value in each region of the induced voltage of the infrared sensor, the induced voltage of the infrared sensor In order to determine the amount of activity directly from the amount of change, it is possible to detect the amount of activity with a simple configuration without calculating the distance moved or calculating the distance moved, and the detected amount of activity By adding Flip ventilation amount based ventilation can provide an excellent ventilation system more inexpensive and comfort control.

さらに、検知対象領域が広い場合であっても、少なくとも2つ以上の互いに相異なる検知領域を有する赤外線センサの配置と各領域における誘起電圧の極小値の発生タイミングから、赤外線センサの検知領域を跨ぐ動きがあった場合でも精度良く活動量を判定することができ、画像処理を必要とせず、簡単な構成でかつ精度の高い換気量制御を行なうことができる換気装置を提供できる。 Further, even when the detection target area is wide, from the generation timing of the minimum value of the induced voltage in the arrangement and each region of the infrared sensor having different detection region in at least two or more of each other, the detection area of the infrared sensor It is possible to provide a ventilator that can accurately determine the amount of activity even when there is a stride movement, does not require image processing, and can perform highly accurate ventilation control with a simple configuration.

本発明の実施の形態1における換気装置の構成図The block diagram of the ventilation apparatus in Embodiment 1 of this invention 同活動量判定手段2における活動量判定のフローチャートFlow chart of activity amount determination in the activity amount determination means 2 同活動量判定のテーブルデータを示す図The figure which shows the table data of the activity amount determination 同換気量増減制御のフローチャートFlow chart of the ventilation volume change control 同換気量増減のためのテーブルデータを示す図The figure which shows the table data for the same ventilation volume increase / decrease 本発明の実施の形態2における換気装置の構成図The block diagram of the ventilation apparatus in Embodiment 2 of this invention 同活動量判定手段2BのフローチャートFlow chart of the activity amount determination means 2B 同活動量判定のテーブルデータを示す図The figure which shows the table data of the activity amount determination 本発明の実施の形態3における換気装置の構成図The block diagram of the ventilation apparatus in Embodiment 3 of this invention 同活動量判定手段2CのフローチャートFlow chart of the activity amount determination means 2C 同活動量判定のテーブルデータを示す図The figure which shows the table data of the activity amount determination 本発明の実施の形態4における換気装置の構成図The block diagram of the ventilator in Embodiment 4 of this invention 同第二活動量判定手段4のフローチャートFlow chart of the second activity amount determination means 4 同活動量判定のテーブルデータを示す図The figure which shows the table data of the activity amount determination 本発明の実施の形態5における換気装置の構成図The block diagram of the ventilator in Embodiment 5 of this invention 同第三活動量判定手段5のフローチャートFlow chart of the third activity amount determination means 5 同活動量判定のテーブルデータを示す図The figure which shows the table data of the activity amount determination 本発明の実施の形態6における換気装置の構成図The block diagram of the ventilator in Embodiment 6 of this invention 同第四活動量判定手段6のフローチャートFlow chart of the fourth activity amount determination means 6 同活動量判定のテーブルデータを示す図The figure which shows the table data of the activity amount determination 本発明の実施の形態7における換気装置の構成図The block diagram of the ventilator in Embodiment 7 of this invention 同フレネルレンズ7の視野説明図Field of view of the Fresnel lens 7 従来の空調装置の構成図Configuration diagram of conventional air conditioner 同人体感知センサの配置図Layout of human body sensor 従来の換気装置の制御装置に関する構成図Configuration diagram related to conventional ventilator control device

本発明の請求項1記載の発明は、人の活動量を検知する活動量検知手段と、前記活動量検知手段により検知した人の活動量に応じて予め記憶した室容積に対応する基準換気量に加算するように制御する換気量制御手段を備えた換気装置であって、前記活動量検知手段は、少なくとも2つ以上の互いに相異なる検知領域を有する赤外線センサと、前記赤外線センサの誘起電圧の各領域における変化量から活動量を判定する活動量判定手段を備え、前記人の活動量は、前記赤外線センサの誘起電圧の各領域における極小値の発生タイミングから判定する構成としたものであり、赤外線センサの誘起電圧の変化量から直接活動量を判定するため、人の在不在情報に変換、あるいは移動した距離を演算することなく、簡易的な構成で活動量を検出でき、検出した活動量に応じた換気量を基準換気量に加算することにより、より安価でかつ快適性を向上させることができるという作用を有する。 The invention according to claim 1 of the present invention is an activity amount detection means for detecting a person's activity amount, and a reference ventilation volume corresponding to a room volume stored in advance according to the activity amount of the person detected by the activity amount detection means. The activity amount detecting means includes at least two infrared sensors having different detection areas and an induced voltage of the infrared sensor. It comprises an activity amount determination means for determining an activity amount from the amount of change in each region , and the activity amount of the person is configured to be determined from the occurrence timing of the minimum value in each region of the induced voltage of the infrared sensor, Because the amount of activity is determined directly from the amount of change in the induced voltage of the infrared sensor, it is possible to detect the amount of activity with a simple configuration, without converting it into information on the presence or absence of a person or calculating the distance traveled. By adding a reference ventilation minute ventilation corresponding to the detected amount of activity, an effect that can be improved more inexpensive comfort.

さらに、検知対象領域が広い場合であっても、少なくとも2つ以上の互いの赤外線センサの配置と各領域における誘起電圧の極小値の発生タイミングから、赤外線センサの検知領域を跨ぐ動きがあった場合でも精度良く活動量を判定することができ、画像処理を必要とせず、簡単な構成でかつ精度の高い換気量制御を行なうことができるという作用を有する。
Furthermore, even when the detection target area is wide, when there is a movement across the detection area of the infrared sensor from the arrangement of at least two mutual infrared sensors and the generation timing of the minimum value of the induced voltage in each area However, the amount of activity can be determined with high accuracy, image processing is not required, and the ventilation rate control can be performed with a simple configuration and high accuracy.

以下、本発明の実施の形態について図面を参照しながら説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(実施の形態1)
図1は、本発明の実施の形態1における換気装置の構成図を示す。
(Embodiment 1)
FIG. 1 shows a configuration diagram of a ventilation device according to Embodiment 1 of the present invention.

図に示すように、換気装置は、人から放出される赤外線を検知する赤外線センサ1と、この赤外線センサ1の誘起電圧を入力し、入力した誘起電圧の時間変化量から活動量を判定する活動量判定手段2と、判定した活動量から基準換気量への加算量を演算、及び換気量を制御する換気量制御手段3を備えている。   As shown in the figure, the ventilator inputs an infrared sensor 1 that detects infrared rays emitted from a person and an induced voltage of the infrared sensor 1 and determines an activity amount from a time variation of the inputted induced voltage. A volume determination means 2 and a ventilation volume control means 3 for calculating the amount of addition from the determined activity volume to the reference ventilation volume and controlling the ventilation volume are provided.

次に活動量判定手段2における活動量判定のフローチャートを図2に示す。   Next, a flowchart of activity amount determination in the activity amount determination means 2 is shown in FIG.

図に示すように、活動量判定手段2には、赤外線センサ1により得られた誘起電圧を入力する。初回に入力した誘起電圧V1は、初期誘起電圧として記憶する。更に、2回目に入力した誘起電圧V2は、初回に入力した誘起電圧V1と比較し、変化量が△Vを下回っていれば更新せずに初期誘起電圧はV1とする。その際に基準時間t1経過したことを記憶する。3回目に入力した誘起電圧V3と初期誘起電圧V1との変化量が、△Vを上回っ
ていた場合を一例として以下説明する。誘起電圧V3と初期誘起電圧V1との偏差△Vtを演算し、その時の初期誘起電圧を記憶してからの時間偏差△tと偏差△Vtを、図3に示す記憶しておいたテーブルデータと参照して活動量を判定する。活動量の判定は、テーブルデータに示す通り、時間偏差△tと偏差すなわち誘起電圧変化量△Vtから5段階で判定している。
As shown in the drawing, the induced voltage obtained by the infrared sensor 1 is input to the activity amount determination means 2. The induced voltage V1 input for the first time is stored as an initial induced voltage. Furthermore, the induced voltage V2 inputted for the second time is compared with the induced voltage V1 inputted for the first time, and if the amount of change is less than ΔV, it is not updated and the initial induced voltage is set to V1. At this time, the fact that the reference time t1 has elapsed is stored. A case where the amount of change between the induced voltage V3 and the initial induced voltage V1 input for the third time exceeds ΔV will be described as an example. The deviation ΔVt between the induced voltage V3 and the initial induced voltage V1 is calculated, and the time deviation Δt and the deviation ΔVt after storing the initial induced voltage at that time are stored in the stored table data shown in FIG. Determine the amount of activity by referring to it. As shown in the table data, the amount of activity is determined in five stages from the time deviation Δt and the deviation, that is, the induced voltage change amount ΔVt.

次に換気量制御手段3における換気量計算についてのフローチャートを図4に示す。   Next, the flowchart about the ventilation volume calculation in the ventilation volume control means 3 is shown in FIG.

図に示すように、換気量制御手段3は、活動量判定手段2により判定した活動量Ktが、閾値KaからKdを上回っているか否か判定する。判定した結果を元に、各KaからKdを上回った場合に応じて、予め記憶しておいた図5に示すテーブルデータと参照して換気量の増加、あるいは減少分を判定する。換気量の増加量は、例えばVaを10m3/h加算、Vbを15m3/h、Vcを20m3/h、Vdを25m3/hとする。判定した換気量の加算分を基準換気量に加算して最適な換気量を算出する。算出した換気量から換気装置のモータ回転数を制御し、目標とする風量に制御する。   As shown in the figure, the ventilation amount control means 3 determines whether or not the activity amount Kt determined by the activity amount determination means 2 exceeds the threshold value Ka to Kd. Based on the determination result, an increase or decrease in ventilation is determined with reference to the table data shown in FIG. For example, Va is increased by 10 m <3> / h, Vb is 15 m <3> / h, Vc is 20 m <3> / h, and Vd is 25 m <3> / h. The optimum ventilation volume is calculated by adding the determined ventilation volume to the reference ventilation volume. The motor speed of the ventilator is controlled from the calculated ventilation volume, and the target air volume is controlled.

以上のように、本実施の形態1によれば、赤外線センサ1の誘起電圧レベルと時間変化量から活動量を検出し、検出した活動量に応じて換気量を制御することができることとなる。   As described above, according to the first embodiment, the amount of activity can be detected from the induced voltage level of the infrared sensor 1 and the amount of change with time, and the amount of ventilation can be controlled according to the detected amount of activity.

(実施の形態2)
図6は、本発明の実施の形態2における換気装置の構成図を示す。
(Embodiment 2)
FIG. 6 shows a configuration diagram of a ventilation device according to Embodiment 2 of the present invention.

なお、実施の形態1と同一のものは同一符号を付し、詳細な説明は省略する。   The same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

図に示すように、換気装置は、人から放出される赤外線を検知する赤外線センサ1と、この赤外線センサ1の誘起電圧を入力し、入力した誘起電圧の極大値の周期と極大値の変化量から活動量を判定する活動量判定手段2Bと、判定した活動量から基準換気量への加算分を演算、及び換気量を制御する換気量制御手段3を備えている。   As shown in the figure, the ventilator receives an infrared sensor 1 for detecting infrared rays emitted from a person, and an induced voltage of the infrared sensor 1, and the period of the maximum value of the input induced voltage and the amount of change in the maximum value. The activity amount determination means 2B for determining the activity amount from the above and the ventilation amount control means 3 for calculating the addition amount from the determined activity amount to the reference ventilation amount and controlling the ventilation amount.

次に活動量判定手段2Bにおける活動量判定のフローチャートを図7に示す。   Next, a flowchart of activity amount determination in the activity amount determination means 2B is shown in FIG.

図に示すように、活動量判定手段2Bには、赤外線センサ1により得られた誘起電圧を入力する。入力した誘起電圧V1は、初期誘起電圧として記憶する。更に、2回目に入力した誘起電圧V2は、初回に入力した誘起電圧V1と比較し、変化量が△Vを下回っていれば更新せずに初期誘起電圧はV1とする。その際に基準時間t1経過したことを記憶する。3回目に入力した誘起電圧V3と初期誘起電圧V1との変化量が、△Vを上回っていた場合を一例として以下説明する。変化量が△Vを上回った場合、極大値候補として判断し、極大値候補を記憶した後に処理を終了する。さらに4回目に入力した誘起電圧V4が極大値候補より小さい誘起電圧であった場合、誘起電圧V3は極大値Vp1とする。本判定を反復し、極大値Vp1、Vp2が検出された時に極大値Vp1と極大値Vp2の出現した時間間隔△tと極大値の変化量△Vpを、図8に示すように記憶しておいたテーブルデータと参照して活動量を判定する。   As shown in the figure, the induced voltage obtained by the infrared sensor 1 is input to the activity amount determination means 2B. The input induced voltage V1 is stored as an initial induced voltage. Furthermore, the induced voltage V2 inputted for the second time is compared with the induced voltage V1 inputted for the first time, and if the amount of change is less than ΔV, it is not updated and the initial induced voltage is set to V1. At this time, the fact that the reference time t1 has elapsed is stored. A case where the amount of change between the induced voltage V3 and the initial induced voltage V1 input for the third time exceeds ΔV will be described as an example. When the amount of change exceeds ΔV, it is determined as a maximum value candidate, and after the maximum value candidate is stored, the process is terminated. Furthermore, when the induced voltage V4 input for the fourth time is an induced voltage smaller than the maximum value candidate, the induced voltage V3 is set to the maximum value Vp1. When this determination is repeated and the maximum values Vp1 and Vp2 are detected, the time interval Δt at which the maximum value Vp1 and the maximum value Vp2 appear and the change ΔVp in the maximum value are stored as shown in FIG. The amount of activity is determined with reference to the table data.

以上のように、本実施の形態2によれば、赤外線センサ1の誘起電圧の極大値レベルと時間変化量から活動量を検出し、検出した活動量に応じて換気量を制御することができることとなる。   As described above, according to the second embodiment, the amount of activity can be detected from the maximum value level of the induced voltage of the infrared sensor 1 and the amount of change with time, and the ventilation amount can be controlled according to the detected amount of activity. It becomes.

(実施の形態3)
図9は、本発明の実施の形態3における換気装置の構成図を示す。
なお、実施の形態1あるいは2と同一のものは同一符号を付し、詳細な説明は省略する。
(Embodiment 3)
FIG. 9 shows a configuration diagram of a ventilation device according to Embodiment 3 of the present invention.
In addition, the same code | symbol is attached to the same thing as Embodiment 1 or 2, and detailed description is abbreviate | omitted.

図に示すように、換気装置は、人から放出される赤外線を検知する赤外線センサ1と、この赤外線センサ1の誘起電圧を入力し、入力した誘起電圧の極小値の周期と極小値の変化量から活動量を判定する活動量判定手段2Cと、判定した活動量から基準換気量への加算分を演算、及び換気量を制御する換気量制御手段3を備えている。   As shown in the figure, the ventilator inputs an infrared sensor 1 that detects infrared rays emitted from a person, and an induced voltage of the infrared sensor 1, and a minimum value period and a minimum value change amount of the input induced voltage. The activity amount determination means 2C for determining the activity amount from the above, and the ventilation amount control means 3 for calculating the addition amount from the determined activity amount to the reference ventilation amount and controlling the ventilation amount.

次に活動量判定手段2Cにおける活動量判定のフローチャートを図10に示す。   Next, FIG. 10 shows a flowchart of activity amount determination in the activity amount determination means 2C.

図に示すように、活動量判定手段2Cには、赤外線センサ1により得られた誘起電圧を入力する。入力した誘起電圧V1は、初期誘起電圧として記憶する。更に、2回目に入力した誘起電圧V2は、初回に入力した誘起電圧V1と比較し、変化量が△Vを上回っていれば更新せずに初期誘起電圧はV1とする。その際に基準時間t1経過したことを記憶する。3回目に入力した誘起電圧V3と初期誘起電圧V1との変化量が、△Vを下回っていた場合を一例として以下説明する。変化量が△Vを下回った場合、極小値候補として判断し、極小値候補を記憶した後に処理を終了する。さらに4回目に入力した誘起電圧V4が極小値候補より大きい誘起電圧であった場合、誘起電圧V3は極小値Vm1とする。本判定を反復し、極小値Vm1、Vm2が検出された時に極小値Vm1と極小値Vm2の出現した時間間隔△tと極小値の変化量△Vmを、図11に示すように記憶しておいたテーブルデータと参照して活動量を判定する。   As shown in the figure, the induced voltage obtained by the infrared sensor 1 is input to the activity amount determination means 2C. The input induced voltage V1 is stored as an initial induced voltage. Furthermore, the induced voltage V2 inputted for the second time is compared with the induced voltage V1 inputted for the first time, and if the amount of change exceeds ΔV, it is not updated and the initial induced voltage is set to V1. At this time, the fact that the reference time t1 has elapsed is stored. A case where the amount of change between the induced voltage V3 and the initial induced voltage V1 input for the third time is less than ΔV will be described as an example. When the amount of change is less than ΔV, it is determined as a minimum value candidate, and after the minimum value candidate is stored, the process ends. Further, when the induced voltage V4 input for the fourth time is an induced voltage larger than the minimum value candidate, the induced voltage V3 is set to the minimum value Vm1. When this determination is repeated and the minimum values Vm1 and Vm2 are detected, the time interval Δt at which the minimum value Vm1 and the minimum value Vm2 appear and the change ΔVm of the minimum value are stored as shown in FIG. The amount of activity is determined with reference to the table data.

以上のように、本実施の形態3によれば、赤外線センサ1の誘起電圧の極小値レベルと時間変化量から活動量を検出し、検出した活動量に応じて換気量を制御することができることとなる。   As described above, according to the third embodiment, the amount of activity can be detected from the minimum value level of the induced voltage of the infrared sensor 1 and the amount of change with time, and the ventilation amount can be controlled according to the detected amount of activity. It becomes.

(実施の形態4)
図12は、本発明の実施の形態4における換気装置の構成図を示す。
(Embodiment 4)
FIG. 12 shows a configuration diagram of a ventilation device according to Embodiment 4 of the present invention.

なお、実施の形態1乃至3と同一部分は同一符号を付し、詳細な説明は省略する。   In addition, the same part as Embodiment 1 thru | or 3 attaches | subjects the same code | symbol, and abbreviate | omits detailed description.

図に示すように、換気装置は、人から放出される赤外線を検知する2つの赤外線センサ1a、1bと、これらの赤外線センサ1a、1bの誘起電圧を入力し、入力した誘起電圧の変化量から活動量を判定する第二活動量判定手段4と、判定した活動量から基準換気量に加算するように換気量を制御する換気量制御手段3を備えている。   As shown in the figure, the ventilator inputs two infrared sensors 1a and 1b that detect infrared rays emitted from a person, and the induced voltages of these infrared sensors 1a and 1b. Second activity amount determination means 4 for determining the activity amount and ventilation amount control means 3 for controlling the ventilation amount so as to add the determined activity amount to the reference ventilation amount are provided.

次に第二活動量判定手段4における活動量判定のフローチャートを図13に示す。   Next, a flowchart of activity amount determination in the second activity amount determination means 4 is shown in FIG.

図に示すように、第二活動量判定手段4には、赤外線センサ1a、1bにより得られた誘起電圧Va1、Vb1を入力する。入力した誘起電圧Va1、Vb1は、初期誘起電圧として記憶する。更に、2回目に入力した誘起電圧Va2、Vb2を、初回に入力した誘起電圧Va1、Vb1と比較し、変化量が△Vを下回っていれば更新せずに初期誘起電圧はVa1、Vb1とする。その際に基準時間t1経過したことを記憶する。3回目に入力した誘起電圧Va3、Vb3と初期誘起電圧Va1、Vb1との変化量が、各△Vを上回っていた場合を一例として以下説明する。各変化量△Va、△Vbが△Vを上回った場合、その初期誘起電圧を記憶してからの時間偏差△ta、△tbと誘起電圧変化量△Va、△Vbを、図14に示すように記憶しておいたテーブルデータと参照して活動量を判定する。
このとき、誘起電圧変化量△Vaが負、かつ誘起電圧変化量△Vbが正、かつ時間偏差△taが△tbとほぼ等しい場合は、赤外線センサ1aの検出領域から赤外線センサ1bの検出領域に移動したと判断し、予め記憶している互いの赤外線センサ1a、1bの検出領域から同じく図14に示すテーブルデータを参照して活動量を判定する。
As shown in the drawing, the induced voltages Va1 and Vb1 obtained by the infrared sensors 1a and 1b are input to the second activity amount determination means 4. The input induced voltages Va1 and Vb1 are stored as initial induced voltages. Further, the induced voltages Va2 and Vb2 inputted for the second time are compared with the induced voltages Va1 and Vb1 inputted for the first time. . At this time, the fact that the reference time t1 has elapsed is stored. The case where the amount of change between the induced voltages Va3 and Vb3 and the initial induced voltages Va1 and Vb1 input for the third time exceeds each ΔV will be described as an example. When the respective variations ΔVa and ΔVb exceed ΔV, the time deviations Δta and Δtb and the induced voltage variations ΔVa and ΔVb after storing the initial induced voltage are shown in FIG. The amount of activity is determined with reference to the table data stored in the table.
At this time, when the induced voltage change amount ΔVa is negative, the induced voltage change amount ΔVb is positive, and the time deviation Δta is substantially equal to Δtb, the detection region of the infrared sensor 1a is changed to the detection region of the infrared sensor 1b. The movement amount is determined, and the activity amount is determined by referring to the table data similarly shown in FIG. 14 from the detection areas of the mutual infrared sensors 1a and 1b stored in advance.

以上のように、本実施の形態4によれば、赤外線センサ1a、1bの誘起電圧の変化量から活動量を検出し、検出した活動量に応じて基準換気量に換気量を加算制御することができることとなる。   As described above, according to the fourth embodiment, the activity amount is detected from the amount of change in the induced voltage of the infrared sensors 1a and 1b, and the ventilation amount is added to the reference ventilation amount according to the detected activity amount. Will be able to.

(実施の形態5)
図15は、本発明の実施の形態5における換気装置の構成図を示す。
(Embodiment 5)
FIG. 15: shows the block diagram of the ventilation apparatus in Embodiment 5 of this invention.

なお、実施の形態1乃至4と同一のものは同一符号を付し、詳細な説明は省略する。   The same components as those in the first to fourth embodiments are denoted by the same reference numerals, and detailed description thereof is omitted.

図に示すように、換気装置は、人から放出される赤外線を検知する2つの赤外線センサ1a、1bと、これらの赤外線センサ1a、1bの誘起電圧を入力し、入力した誘起電圧の極大値の発生タイミングから活動量を判定する第三活動量判定手段5と、判定した活動量から基準換気量に加算するように換気量を制御する換気量制御手段3を備えている。   As shown in the figure, the ventilator inputs two infrared sensors 1a and 1b that detect infrared rays emitted from a person and the induced voltages of these infrared sensors 1a and 1b, and the maximum value of the inputted induced voltages. A third activity amount determination unit 5 that determines an activity amount from the occurrence timing and a ventilation amount control unit 3 that controls the ventilation amount so as to add the determined activity amount to the reference ventilation amount are provided.

次に第三活動量判定手段5における活動量判定のフローチャートを図16に示す。   Next, FIG. 16 shows a flowchart of activity amount determination in the third activity amount determination means 5.

図に示すように、第三活動量判定手段5には、赤外線センサ1a、1bにより得られた誘起電圧Va1、Vb1を入力する。入力した誘起電圧Va1、Vb1は、初期誘起電圧として記憶する。更に、2回目に入力した誘起電圧Va2、Vb2を、初回に入力した誘起電圧Va1、Vb1と比較し、変化量が△Vを上回っていれば極大値候補Vpa1、Vpb1として記憶し、下回っていれば極大値候補は更新せずに初期誘起電圧Va1、Vb1とする。さらに、3回目に入力した誘起電圧Va3、Vb3が極大値候補より小さい誘起電圧であった場合、誘起電圧Vpa1、Vpb1は極大値として判断する。本判定を反復し、極大値Vpa1、Vpa2、Vpb1、Vpb2の出現した各時間間隔△tpa、△tpbと極大値の変化量△Vpa、△Vpbを図17に示すように記憶しておいたテーブルデータを参照して活動量を判定する。   As shown in the figure, the induced voltages Va1 and Vb1 obtained by the infrared sensors 1a and 1b are input to the third activity amount determination means 5. The input induced voltages Va1 and Vb1 are stored as initial induced voltages. Furthermore, the induced voltages Va2 and Vb2 inputted for the second time are compared with the induced voltages Va1 and Vb1 inputted for the first time, and if the change amount exceeds ΔV, they are stored as maximum value candidates Vpa1 and Vpb1, and are lower. For example, the maximum value candidates are not updated and are set to the initial induced voltages Va1 and Vb1. Furthermore, when the induced voltages Va3 and Vb3 input for the third time are smaller than the maximum value candidates, the induced voltages Vpa1 and Vpb1 are determined as the maximum values. This determination is repeated, and the time intervals Δtpa and Δtpb at which the maximum values Vpa1, Vpa2, Vpb1 and Vpb2 appear and the changes ΔVpa and ΔVpb of the maximum values are stored as shown in FIG. Determine the amount of activity by referring to the data.

以上のように、本実施の形態5によれば、赤外線センサ1a、1bの誘起電圧の各極大値と発生タイミングから活動量を検出し、検出した活動量に応じて基準換気量に換気量を加算制御することができることとなる。   As described above, according to the fifth embodiment, the amount of activity is detected from the maximum values of the induced voltages of the infrared sensors 1a and 1b and the generation timing, and the amount of ventilation is set to the reference amount of ventilation according to the detected amount of activity. It is possible to perform addition control.

(実施の形態6)
図18は、本発明の実施の形態6における換気装置の構成図を示す。
(Embodiment 6)
FIG. 18 shows a configuration diagram of a ventilation device according to Embodiment 6 of the present invention.

なお、実施の形態1乃至5と同一のものは同一符号を付し、詳細な説明は省略する。   The same components as those in the first to fifth embodiments are denoted by the same reference numerals, and detailed description thereof is omitted.

図に示すように、換気装置は、人から放出される赤外線を検知する2つの赤外線センサ1a、1bと、これらの赤外線センサ1a、1bの誘起電圧を入力し、入力した誘起電圧の極大値の発生タイミングから活動量を判定する第四活動量判定手段6と、判定した活動量から基準換気量に加算するように制御する換気量制御手段3を備えている。   As shown in the figure, the ventilator inputs two infrared sensors 1a and 1b that detect infrared rays emitted from a person and the induced voltages of these infrared sensors 1a and 1b, and the maximum value of the inputted induced voltages. A fourth activity amount determining means 6 for determining an activity amount from the occurrence timing and a ventilation amount control means 3 for controlling to add the determined activity amount to the reference ventilation amount are provided.

次に第四活動量判定手段6における活動量判定のフローチャートを図19に示す。   Next, a flowchart of activity amount determination in the fourth activity amount determination means 6 is shown in FIG.

図に示すように、第四活動量判定手段6には、赤外線センサ1a、1bにより得られた誘起電圧Va1、Vb1を入力する。入力した誘起電圧Va1、Vb1は、初期誘起電圧
として記憶する。更に、2回目に入力した誘起電圧Va2、Vb2を、初回に入力した誘起電圧Va1、Vb1と比較し、変化量が△Vを下回っていれば極小値候補Vma1、Vmb1として記憶し、上回っていれば極小値候補は更新せずに初期誘起電圧Va1、Vb1とする。さらに、3回目に入力した誘起電圧Va3、Vb3が極小値候補より大きい誘起電圧であった場合、誘起電圧Vma1、Vmb1は極小値として判断する。本判定を反復し、極小値Vma1、Vma2、Vmb1、Vmb2の出現した各時間間隔△tma、△tmbと極小値の変化量△Vma、△Vmbを図20に示すように記憶しておいたテーブルデータを参照して活動量を判定する。
As shown in the figure, the induced voltages Va1 and Vb1 obtained by the infrared sensors 1a and 1b are input to the fourth activity amount determination means 6. The input induced voltages Va1 and Vb1 are stored as initial induced voltages. Further, the induced voltages Va2 and Vb2 inputted for the second time are compared with the induced voltages Va1 and Vb1 inputted for the first time. For example, the minimum value candidates are not updated and are set to the initial induced voltages Va1 and Vb1. Further, when the induced voltages Va3 and Vb3 input for the third time are larger than the minimum value candidates, the induced voltages Vma1 and Vmb1 are determined as the minimum values. This determination is repeated, and the time intervals Δtma, Δtmb where the minimum values Vma1, Vma2, Vmb1, Vmb2 appear and the changes ΔVma, ΔVmb of the minimum values are stored as shown in FIG. Determine the amount of activity by referring to the data.

以上のように、本実施の形態5によれば、赤外線センサ1a、1bの誘起電圧の各極小値と発生タイミングから活動量を検出し、検出した活動量に応じて基準換気量に換気量を加算制御することができることとなる。   As described above, according to the fifth embodiment, the amount of activity is detected from each minimum value of the induced voltage of the infrared sensors 1a and 1b and the generation timing, and the ventilation amount is set to the reference ventilation amount according to the detected amount of activity. It is possible to perform addition control.

(実施の形態7)
図21は、本発明の実施の形態7における換気装置の構成図を示す。
(Embodiment 7)
FIG. 21 shows a configuration diagram of a ventilation device according to Embodiment 7 of the present invention.

なお、実施の形態1乃至6と同一のものは同一符号を付し、詳細な説明は省略する。   The same components as those in Embodiments 1 to 6 are denoted by the same reference numerals, and detailed description thereof is omitted.

図に示すように、換気装置は、人から放出される赤外線を検知する赤外線センサ1と、この赤外線センサ1の誘起電圧を入力し、入力した誘起電圧の時間変化量から活動量を判定する活動量判定手段2と、判定した活動量から基準換気量に加算するように制御する換気量制御手段3と人からの赤外光を選択的に透過及び集光させる赤外集光手段としてのフレネルレンズ7を備えている。   As shown in the figure, the ventilator inputs an infrared sensor 1 that detects infrared rays emitted from a person and an induced voltage of the infrared sensor 1 and determines an activity amount from a time variation of the inputted induced voltage. Fresnel as an infrared condensing means for selectively transmitting and condensing infrared light from a person and a volume determining means 2, a ventilation control means 3 for controlling the determined activity to be added to the reference ventilation A lens 7 is provided.

次にフレネルレンズ7の視野について、図22を参照しながら説明する。   Next, the visual field of the Fresnel lens 7 will be described with reference to FIG.

図中の(a)に示すように、フレネルレンズ7は、赤外光の中で人から放出されている10ミクロン前後の波長域を選択的に透過し、かつ120度の広角な視野を得るために多面構造となっている。また、フレネルレンズ7の分割数は8分割となっており、一方位当たりの視野角は7度となっている。一方位当たりの視野は、階高を250cmとすると、図中の(b)のようになり、微小な人の動作にも反応するようになっている。   As shown in (a) in the figure, the Fresnel lens 7 selectively transmits a wavelength region of about 10 microns emitted from a person in infrared light, and obtains a wide-angle field of 120 degrees. Therefore, it has a multifaceted structure. The number of divisions of the Fresnel lens 7 is 8, and the viewing angle per one position is 7 degrees. On the other hand, if the floor height is 250 cm, the visual field per unit is as shown in (b) in the figure, and responds to the movement of a minute person.

以上のように、本実施の形態7によれば、赤外集光手段としてのフレネルレンズ7を備えることで、視野角を広角にすることができ、かつ分割数を9分割、一方位当たりの視野角を7度とすることで微小な人の動作を検知することができることとなる。   As described above, according to the seventh embodiment, by providing the Fresnel lens 7 as the infrared condensing means, the viewing angle can be widened, the number of divisions is nine, By setting the viewing angle to 7 degrees, it is possible to detect a minute human motion.

人感センサを用いて、人体検出、活動量検出による各種空調機器の自動制御に関するものであり、空調機の自動発停や温度、風向、あるいは風量制御の用途にも適用できる。   The present invention relates to automatic control of various air-conditioning equipment by human detection and activity detection using a human sensor, and can be applied to automatic start / stop of an air conditioner, temperature, wind direction, or air volume control.

1 赤外線センサ
1a 赤外線センサ
1b 赤外線センサ
2 活動量判定手段
2B 活動量判定手段
2C 活動量判定手段
3 換気量制御手段
4 第二活動量判定手段
5 第三活動量判定手段
6 第四活動量判定手段
7 フレネルレンズ
DESCRIPTION OF SYMBOLS 1 Infrared sensor 1a Infrared sensor 1b Infrared sensor 2 Activity amount determination means 2B Activity amount determination means 2C Activity amount determination means 3 Ventilation amount control means 4 Second activity amount determination means 5 Third activity amount determination means 6 Fourth activity amount determination means 7 Fresnel lens

Claims (1)

人の活動量を検知する活動量検知手段と、前記活動量検知手段により検知した人の活動量に応じて予め記憶した室容積に対応する基準換気量に加算するように制御する換気量制御手段を備えた換気装置であって、前記活動量検知手段は、少なくとも2つ以上の互いに相異なる検知領域を有する赤外線センサと、前記赤外線センサの誘起電圧の各領域における変化量から活動量を判定する活動量判定手段を備え、前記人の活動量は、前記赤外線センサの誘起電圧の各領域における極小値の発生タイミングから判定することを特徴とする換気装置。 Activity amount detection means for detecting a person's activity amount, and a ventilation amount control means for controlling to add to a reference ventilation amount corresponding to a room volume stored in advance according to the activity amount of the person detected by the activity amount detection means The activity amount detecting means determines an activity amount from an infrared sensor having at least two or more different detection regions and a change amount in each region of the induced voltage of the infrared sensor. with an activity amount determining means, an activity amount of the person is ventilator and judging from the generation timing of the pole minimum value in each region of the induced voltage of the infrared sensor.
JP2005277752A 2005-09-26 2005-09-26 Ventilation equipment Expired - Fee Related JP4830422B2 (en)

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CN105650802B (en) * 2015-05-27 2019-10-11 宇龙计算机通信科技(深圳)有限公司 The control method and device of air reservoir apparatus, air treatment system

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JP3225993B2 (en) * 1994-04-20 2001-11-05 株式会社日立製作所 Human body detecting device and air conditioner using the same
JP2001355884A (en) * 2001-06-21 2001-12-26 Matsushita Seiko Co Ltd Ventilating fan

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105650802B (en) * 2015-05-27 2019-10-11 宇龙计算机通信科技(深圳)有限公司 The control method and device of air reservoir apparatus, air treatment system

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