JP3598769B2

JP3598769B2 - Room-specific air-conditioning controller

Info

Publication number: JP3598769B2
Application number: JP29386397A
Authority: JP
Inventors: 雄二井上; 育雄赤嶺; 靖人向井; 正章佐藤; 武彦志田; 隆太伊藤
Original assignee: Panasonic Corp; Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Corp; Panasonic Holdings Corp
Priority date: 1997-10-27
Filing date: 1997-10-27
Publication date: 2004-12-08
Anticipated expiration: 2017-10-27
Also published as: JPH11132530A

Description

【０００１】
【発明の属する技術分野】
本発明は、建物内の各室の空調環境を個別に制御する室別空調制御装置に関するものである。
【０００２】
【従来の技術】
従来この種の室別空調制御装置は、住宅や小規模オフィス等の建物において各室を個別に空調制御できるようになっており、不在時の運転によるエネルギーロスを低減するためには、運転を停止または運転設定を変更する必要がある。また、これら操作を自動化するため、各室毎に人の在不在を検出するセンサを設け、在室する室の空調設定温度は快適性を優先した所定値に設定し、不在の室の空調設定温度は在室の室より低負荷側の所定値に自動的にコントロールする制御装置が発明されている。さらに、短期間の不在や滞在において空調動作の変動をなくし空調の安全性を確保するため、不在および在への状態変化した後所定時間経過してから空調設定温度の変更するようになっていた。
【０００３】
【発明が解決しようとする課題】
しかしながら、上記従来の構成では、居住者が不在室に入室する以前に滞在していた環境に関係なく不在時の空調設定温度が一律に設定されることになる。これにより、入室前の滞在環境が異なると入室後の空調環境が同じであっても快適性が異なるため、不在室に入室した時の快適性が損なわれたり、逆に快適過ぎて本来の不在時の省エネ効果が得られないという課題を有していた。
【０００４】
また、不在時の空調設定温度を一律に設定すると、それが在室時の快適な設定に近い場合長時間不在の室では不在時のエネルギーロスが大きく、逆にそれがより低負荷の設定の場合在室時間が長く快適性が優先される室では入室後すぐに十分な快適性が得られないという課題を有していた。
【０００５】
また、不在から在室または在室から不在への状態変化にも関わらずその後一律所定時間経過するまでは空調設定温度を変更しないため、その所定時間内において在室から不在に変化した場合では在室時の快適な設定が維持されその間にエネルギーロスが生じる。逆に不在から在室に変化した場合では不在時の低負荷側の設定が維持されその間に十分な快適性が得られないという課題を有していた。また、前記一律所定時間経過した後、空調設定温度を低負荷側に設定変更した直後に在室が発生する場合に入室時の快適性が損なわれたり、快適側に設定変更した直後に不在が発生する場合にエネルギーロスが生じるという課題を有していた。
【０００６】
本発明はこのような従来の課題を解決するものであり、建物内の各室の在不在状態の変化を検出し、室外からの入室および室間移動が生じるタイミングやそれら移動に伴う滞在環境の変化を予め想定して各室の空調環境の設定を行うことにより、快適性が要求される室および時間帯では常に必要十分な快適環境が実現でき、省エネ性が要求される室および時間帯では快適性が損なわれない範囲でより省エネ化を図ることができる。
【０００７】
【課題を解決するための手段】
上記課題を解決するために本発明は、各室毎に人の在不在を検出する各人検出手段と、各室毎の室内環境を検出する各室内環境検出手段と、室外の環境を検出する室外環境検出手段と、空調使用者が室別に在室時の設定温度を入力する在室設定温度入力手段と、前記各人検出手段の出力による各室の在不在状態により在室が検出された各室の空調設定温度を前記在室設定温度入力手段で入力された各在室設定温度に設定し、不在が検出された各室の空調設定温度を、一部室不在の場合では在室が検出された室の前記各室内環境検出手段の出力を基に所定の不在室設定温度に設定し、全室不在の場合では前記室外環境検出手段の出力を基に所定の不在室設定温度に設定する制御手段とを備える。
【０００８】
また、各室毎に人の在不在を検出する各人検出手段と、空調使用者が室別に在室時の設定温度を入力する在室設定温度入力手段と、日時を出力する日時出力手段と、前記日時出力手段と各室の人検出手段の出力により日時毎の各室の在不在状態を記憶する記憶手段と、前記記憶手段で過去に記憶されたデータを基に各室の将来の在不在状態を予測する予測手段と、前記在室設定温度入力手段の入力と前記予測手段の出力を基に各在室および各不在室の空調設定温度を設定する制御手段とを備える。
【０００９】
【発明の実施の形態】
請求項１に記載の発明は、制御手段により、各人検出手段の出力において在室が検出された各室の空調設定温度は、在室設定温度入力手段で室毎に入力された在室時に快適な在室設定温度に設定される。また、一部室不在が検出された場合の不在の各室の空調設定温度は、他の在室からの入室を想定し在室が検出された室の各室内環境検出手段の出力を基に在室設定温度より低負荷の所定の設定温度に設定される。全室不在が検出された場合の不在の各室の空調設定温度は、室外から入室を想定し室外環境検出手段の出力を基に在室時の設定温度より低負荷の所定の設定温度に設定される。
【００１０】
これによって、在室においては、空調使用者が要求する快適環境が得られる。また、不在室においては、不在室へ室外からの入室の可能性があるか、他の在室から入室の可能性があるかが判別され、それぞれの場合に応じて、不在室の空調設定温度を入室時の快適性が損なわれない範囲でより低負荷側に設定され、不在室の空調での必要以上のエネルギー消費を抑えることができる。
【００１１】
請求項２に記載の発明は、請求項１記載の室別空調制御装置において、各人検出手段の出力が全室不在の場合、制御手段により、室外からの不在の室への人の移動を想定し、前記不在の室の空調設定温度は、前記室外環境検出手段で検出される外気温が冷房時は高い程、暖房時は低い程低負荷側になるように設定される。
【００１２】
これにより、室外での滞在環境に関わらず室外から不在の室へ入室した時の快適性が損なわれることなく、かつ不在室の空調によるエネルギー消費を最小限に抑えることができる。
【００１３】
請求項３に記載の発明は、請求項１記載の室別空調制御装置において、各人検出手段の出力が一部室不在の場合、制御手段により、在室の室から不在の室への人の移動を想定し、前記不在の室の空調設定温度は、冷房時は各室内環境検出手段の出力による各室の室温の中の最低室温よりも低負荷側に設定される。また、暖房時は在室する各室の室温の中の最高室温よりも低負荷側に設定される。
【００１４】
これにより、最も快適な在室の室から不在の室へ入室した場合でも入室時の快適性が損なわれることなく、かつ不在室の空調によるエネルギー消費を最小限に抑えることができる。
【００１５】
請求項４に記載の発明は、まず、記憶手段により、日時出力手段で検出され出力される日時毎に各室の人検出手段から出力される各室の在不在状態が記憶され、予測手段により、前記記憶手段で過去に記憶されたデータを基に各室における将来の在不在状態が予測される。次に、制御手段により、前記予測手段からの出力と在室設定温度入力手段で入力された在室時の設定温度とを基に、各在室および各不在室の空調設定温度が設定される。
【００１６】
これにより、近い将来不在が予測される在室の空調設定温度を予め快適性が損なわれない範囲で低負荷側に設定しエネルギー消費を抑えることができる。
【００１７】
また、近い将来在室が予測される不在室の空調設定温度を予め快適側に設定し不在室に入室した時の快適性を維持することができる。
【００１８】
請求項５に記載の発明は、請求項４記載の室別空調制御装置において、まず、予測手段により、各人検出手段により全室不在が検出された場合、その後各室に入室が発生する時刻の予測が行われる。
【００１９】
次に、制御手段により、前記各室毎の予測入室時刻の中で最も早い予測入室時刻の所定時間前の時刻以前では、不在の各室の空調設定温度を在室設定温度入力手段で入力された在室設定温度よりも低負荷側に設定される。また、前記最も早い予測入室時刻の所定時間前の時刻以降では、前記最も早い予測入室時刻から所定時間内の予測入室時刻が得られた各不在室の空調設定温度を前記不在室設定温度から前記在室設定温度よりに設定変更される。
【００２０】
これによって、入室の可能性が高い時刻以前はより低負荷側の設定にして不在室の空調によるエネルギー消費を最小限に抑えることができ、入室の可能性が高い時刻になると低負荷側の設定から快適よりの設定に変更し入室時の快適性が損なわれないようにすることができる。
【００２１】
請求項６に記載の発明は、請求項４記載の室別空調制御装置において、まず、予測手段により、不在から在に変化した室の滞在時間が予測される。
【００２２】
次に、制御手段により、不在から在に変化した室の空調設定温度は、前記予測された滞在時間が所定時間以内の場合、不在から在に変化した後も不在時に設定された低負荷側の設定温度に維持される。また、前記予測された滞在時間が前記所定時間を超える場合、不在から在に変化した時前記不在時の低負荷側の設定温度から在室設定温度入力手段で入力された在室時の快適設定温度に設定変更される。
【００２３】
これにより、短期間の滞在が予測され低負荷側の設定温度が許容される室においてはエネルギー消費を抑えることができる。また、長期間の滞在が予測され快適性が優先される室では入室後すぐに十分な快適性を得ることができる。
【００２４】
請求項７に記載の発明は、請求項６記載の室別空調制御装置において、制御手段により、予測手段で予測された滞在時間が所定時間以内の在室の空調設定温度は、滞在時間が前記所定時間に達した時、前記在室の低負荷側の設定温度を在室時の設定温度に戻される。
【００２５】
これにより、予測以上に滞在時間が延長された時でも低負荷側の設定温度が許容できなくなる前に自動的に在室時の設定温度に戻され快適性を維持することができる。
【００２６】
請求項８に記載の発明は、請求項４記載の室別空調制御装置において、まず、予測手段により、在から不在に変化した室の不在時間が予測される。
【００２７】
次に、制御手段により、在から不在に変化した室の空調設定温度は、前記予測された不在時間が所定時間以内の場合、在から不在に変化した後も在室時に在室設定温度入力手段で入力された快適設定温度に維持される。また、前記予測された不在時間が前記所定時間を超える場合、在から不在に変化した時前記在室時の快適設定温度から不在時の低負荷側の設定温度に設定変更される。
【００２８】
これにより、短期間の不在が予測される室では、短期間で室に戻ってきたときに不快感を生じることがなく快適性を維持することができる。また、長期間の不在が予測される室では、不在になった直後から設定温度が低負荷側に設定され、不在室の空調によるエネルギーロスをより少なくすることができる。
【００２９】
請求項９に記載の発明は、請求項８記載の室別空調制御装置において、制御手段により、予測手段で予測された不在時間が所定時間以内の不在室の空調設定温度は、不在時間が前記所定時間に達した時、前記不在室の快適設定温度を不在時の低負荷側の設定温度に戻される。
【００３０】
これにより、予測以上に不在時間が延長された時でも自動的に低負荷側に設定温度に変更されるためエネルギーロスを最小限に防ぐことができる。
【００３１】
請求項１０に記載の発明は、請求項４記載の室別空調制御装置において、まず、予測手段により、各不在室における不在開始後の各時刻での入室確率が予測される。次に、制御手段により、前記各不在室の空調設定温度は前記入室確率が低い時刻程より低負荷側に設定される。
【００３２】
これにより、入室確率がより低い不在時間帯での空調によるエネルギーロスをより少なくすることができる。
【００３３】
【実施例】
以下本発明の実施例について図面を参照して説明する。
【００３４】
（実施例１）
図１において、本発明に基づく室別空調制御装置の実施例１のブロック構成図を示す。
【００３５】
室別空調制御装置１には、各室毎に設置された人の赤外線等により人が在室しているか不在かを検出する人検出手段２と、各室毎に設置された室内環境として室温等を検出する室内環境検出手段３と、室外環境として外気温等を検出する室外環境検出手段４と、空調使用者が室別に在室時の設定温度を入力する在室設定温度入力手段５と、各室の人検出手段２と各室の室内環境検出手段３および室外環境検出手段４と各室の在室設定温度入力手段５の出力を基に各室の温度等の空調設定値を決定し、各室の室内環境検出手段３の出力による室温が前記決定された各室の空調設定値に一致するように各室に設置された空調機６の運転を制御する制御手段７とを備えている。
【００３６】
この構成によって、在室については、空調使用者が希望する快適環境に設定される。不在室については、不在室への入室時の快適性が不在室に入室する前の滞在環境によって異なることを考慮し、まず、各室の在不在状態より不在室へ室外からの入室の可能性があるか、他の在室から入室の可能性があるかが判別される。そして、それぞれの場合での入室前の滞在環境に応じて、不在室の空調設定温度を入室時の快適性が損なわれない範囲でより低負荷側になるように設定する。
【００３７】
よって、不在室では、不在室への入室前の滞在環境に関わらず入室時の快適性が損なわれず、かつ、入室する前の不在室の空調によるエネルギーロスを最小限に抑えることができる。
【００３８】
図２は本実施例の制御動作を示すフローチャートである。
まず、各室の人検出手段により各室の在不在状況を検出し（Ｓ１）、全室不在か在室と不在が両方あるか全室在室かを判断する（Ｓ２）。
【００３９】
全室不在の場合、室外環境検出手段で外気温Ｔｏを検出し（Ｓ３）、制御手段は、室外からの入室を想定し、不在の各室の空調設定温度Ｔｓ０（ｎ）を外気温の関数ｆ１（Ｔｏ）により決定されるＴａ０にセットし（Ｓ４）、各不在室の室温がＴａ０となるように各不在室の空調機の運転周波数Ｆ（ｎ）を制御する（Ｓ５）。Ｔａ０は冷房時は外気温が高い程、暖房時は外気温が低い程より低負荷側に設定される値であり、室外から不在室への入室時の快適性が損なわれない範囲でエネルギー消費を最小限に抑えることができる。
【００４０】
Ｓ６では、再度各室の在不在状況を検出し入室が発生したかどうかを判断する。引き続き全室不在の場合はＳ３に戻り、入室発生の場合は、その在室の空調設定温度Ｔｓ１（ｋ）を在室設定温度入力手段で入力設定された在室時の設定温度Ｔｉ（ｋ）にセットし（Ｓ７）、入室発生した在室の室温がセットされた空調設定温度になるようにその室の空調機の運転周波数Ｆ（ｋ）を制御する（Ｓ８）。
【００４１】
次に、Ｓ２において在室と不在が両方ある場合、室内環境検出手段で各室の室温Ｔａ（ｎ）を検出し（Ｓ９）、制御手段は、最も快適な設定温度が設定された室から不在室へ入室した時の快適性を最小限維持できるように、不在の各室の空調設定温度Ｔｓ０（ｍ）を冷房時は各在室の室温の中で最小の室温Ｔａ（ｍｉｎ）より所定温度幅ΔＴｃ高く、暖房時は各在室の室温の中で最大の室温Ｔａ（ｍａｘ）より所定温度幅ΔＴｈ低く低負荷側にセットし（Ｓ１０）、在室の各室の空調設定温度Ｔｓ１（１）は在室設定温度入力手段で各室毎に入力設定された在室時の設定温度Ｔｉ（１）にセットする（Ｓ１１）。
【００４２】
制御手段は、在室および不在の各室の室温がセットされた各空調設定温度になるように各室の空調機の運転周波数Ｆ（ｎ）を制御する（Ｓ１２）。
【００４３】
これにより、在室から不在室への入室時の快適性が損なわれない範囲でエネルギー消費を最小限に抑えることができる。
【００４４】
また、全室在室の場合は、在室の各室の空調設定温度Ｔｓ１（ｎ）は在室設定温度入力手段で各室毎に入力設定された在室時の設定温度Ｔｉ（ｎ）にセットされる（Ｓ１３）。制御手段は、在室の各室の室温がセットされた各空調設定温度になるように各室の空調機の運転周波数Ｆ（ｎ）を出力し制御する（Ｓ１４）。
【００４５】
上記Ｓ１〜Ｓ１４の動作が繰り返されることにより、在室については常に快適な環境が維持でき、不在室については、不在室へ入室する前の滞在環境に関わらず不在室へ入室した時の快適性が損なわれず、かつ、入室する前の不在室の空調によるエネルギーロスを最小限に抑えることができる。
【００４６】
（実施例２）
各室毎に人の在不在を検出する各人検出手段と、空調使用者が室別に在室時の設定温度を入力する在室設定温度入力手段と、日時を検出して出力する日時出力手段と、前記日時出力手段と各室の人検出手段の出力により日時毎の各室の在不在状態を記憶する記憶手段と、前記記憶手段で過去に記憶されたデータを基に各室の将来の在不在状態を予測する予測手段と、前記在室設定温度入力手段の入力と前記予測手段の出力を基に各在室および各不在室の空調設定温度を設定する制御手段とを備える。
【００４７】
図３において、本発明に基づく室別空調制御装置の実施例２のブロック構成図を示す。
【００４８】
室別空調制御装置１には、各室毎に設置された人の赤外線により人が在室しているか不在かを検出する人検出手段２と、空調使用者が室別に在室時の設定温度を入力する在室設定温度入力手段５と、日時および時刻を出力する日時出力手段８と、日時出力手段８と各室の人検出手段２の出力により日時毎の各室の在不在状態を記憶する記憶手段９と、記憶手段９で過去に記憶されたデータを基に、各室の将来の在不在状態を予測する予測手段１０と、在室設定温度入力手段５の入力と予測手段１０の出力を基に各在室および各不在室の空調設定温度を設定し、各室の室内環境検出手段３の出力による室内環境が各室の空調設定値に一致するように各室に設置された空調機６の運転を制御する制御手段７とを備えている。
【００４９】
この構成によって、近い将来不在が予測される在室については、空調設定温度を予め快適性が損なわれない範囲で低負荷側に設定し、エネルギー消費を抑えることができる。また、近い将来在室が予測される不在室については、空調設定温度を予め快適側に設定し、不在室に入室した時の快適性を維持することができる。
【００５０】
図４は、本実施例の全室不在時の制御動作による入室時刻が予測された不在室の設定温度の経時変化図（暖房時）である。
【００５１】
まず、時刻ｔａ０において各室の人検出手段２により全室不在が検出されると、予測手段１０は、記憶手段９における日時毎の各室の在不在状態の組み合わせデータから時刻ｔａ０を中心に±Δｔａ０の時間帯で過去に全室不在が発生したデータを抽出する。抽出されたデータを基に各室の入室時刻の平均値を各室毎の入室時刻の予測値として算出する。
【００５２】
各室の予測入室時刻の中で最も早い入室時刻ｔａ１から所定時間Δｔａ１の間に入室時刻が予測された室の設定温度を、ｔａ１より時間Δｔａ２前に全室不在時の設定温度Ｔｓ０から温度幅ΔＴｓ０だけ快適方向にシフトする。
【００５３】
これによって、室外から入室が発生する可能性の高い不在室の空調設定温度を、予測される入室時刻に合わせて低負荷側から快適よりに設定するため、入室が近づく以前は設定温度が低負荷側に設定されエネルギーロスを抑えることができ、入室が近づくと快適よりに設定されて入室時に快適性が損なわれることがない。
【００５４】
図５は、本実施例の制御動作による滞在時間が予測された在室の暖房時における設定温度の経時変化を示す図である。
【００５５】
まず、時刻ｔｂ０において人検出手段２により室Ｂで不在から在への変化が検出されると、予測手段１０は、記憶手段９における日時毎の各室の在不在状態の組み合わせデータから、時刻ｔｂ０を中心に±Δｔｂ０の時間帯で過去に同じ在不在状態の組み合わせの変化が発生した時のその後の室Ｂの在が不在に変化するまでの滞在時間をデータとして抽出する。
【００５６】
抽出されたデータを基に室Ｂの滞在時間の平均値Δｔｂ１を室Ｂの滞在時間の予測値として算出する。制御手段７は、予測滞在時間が所定時間Δｔｂ２以内の場合（図５（ａ））、室Ｂの設定温度を不在時の低負荷側の設定温度Ｔｓ０（Ｂ）のまま維持する。
【００５７】
また、予測滞在時間が所定時間Δｔｂ２を超える場合（図５（ｂ））、室Ｂの設定温度を在室設定温度入力手段５により入力された設定温度Ｔｓ１（Ｂ）に変更する。
【００５８】
これによって、短期間の滞在が予測され低負荷側の設定温度が許容される室においてはエネルギー消費を抑えることができる。また、長期間の滞在が予測され快適性が優先される室では入室後すぐに十分な快適性を得ることができる。
【００５９】
また、図５（ａ）に示すように、予測滞在時間が所定時間Δｔｂ２未満の場合に、滞在時間がΔｔｂ２に達した時、室Ｂの設定温度を在室設定温度入力手段５により入力された設定温度Ｔｓ１（Ｂ）に変更する。
【００６０】
これによって、予測以上に滞在時間が延長された時でも低負荷側の設定温度が許容できなくなる前に自動的に在室時の設定温度に戻され快適性を維持することができる。
【００６１】
図６は、本実施例の制御動作による不在時間が予測された不在室の暖房時における設定温度の経時変化を示す図である。
【００６２】
まず、時刻ｔｃ０において人検出手段２により室Ｃで在室から不在への変化が検出されると、予測手段１０は、記憶手段９における日時毎の各室の在不在状態の組み合わせデータから、時刻ｔｃ０を中心に±Δｔｃ０の時間帯で過去に同じ在不在状態の組み合わせの変化が発生した時のその後の室Ｃの不在が在に変化するまでの不在時間をデータとして抽出する。
【００６３】
抽出されたデータを基に室Ｃの不在時間の平均値Δｔｃ１を室Ｃの不在時間の予測値として算出する。制御手段７は、予測不在時間が所定時間Δｔｃ２未満の場合（図６（ａ））、室Ｃの設定温度を在室設定温度入力手段５により入力された設定温度Ｔｓ１（Ｃ）のまま維持する。
【００６４】
また、予測不在時間が所定時間Δｔｃ２以上の場合（図６（ｂ））、室Ｃの設定温度を不在時の低負荷側の設定温度Ｔｓ０（Ｃ）に変更する。
【００６５】
これによって、短期間の不在が予測される室では、短期間で室に戻ってきたときに不快感を生じることがなく快適性を維持することができる。
【００６６】
また、長期間の不在が予測される室では、不在になった直後から設定温度が低負荷側に設定され、不在室の空調によるエネルギーロスをより少なくすることができる。
【００６７】
また、図６（ａ）に示すように、予測不在時間が所定時間Δｔｃ２未満の場合に、不在時間がΔｔｃ２に達した時、室Ｂの設定温度を不在時の低負荷側の設定温度Ｔｓ０（Ｃ）に変更する。
【００６８】
これによって、予測以上に不在時間が延長された時でもすぐに低負荷側の設定温度に戻されエネルギーロスを最小限に抑えることができる。
【００６９】
図７は、本実施例において制御動作による入室確率が予測された不在室の暖房時における設定温度の経時変化を示す図である。
【００７０】
時刻ｔｄ０において人検出手段２により室Ｄで在室から不在への変化が検出されると、予測手段１０は、記憶手段７における日時毎の各室の在不在状態の組み合わせデータから、時刻ｔｄ０を中心に±Δｔｄ０の時間帯で同じ在不在状態の組み合わせの変化が発生したデータにおいて室Ｄでのその後の時間経過による在不在の時間変化データを抽出する。
【００７１】
抽出された在不在の時間変化データを基に時刻ｔｄ０以降の時刻ｔ毎の入室確率Ｐ（ｔ）を算出式（入室確率＝時刻ｔでの在室データ数／抽出データ数）により算出し室Ｄの入室確率の予測値する。
【００７２】
制御手段７は、在室時の設定温度Ｔｓ１（Ｄ）を不在室Ｄにおける予測入室確率Ｐ（ｔ）が所定の入室確率Ｐ１以上の時間帯では不在時の低負荷側の設定温度Ｔｓ０（Ｄ）に設定し、予測入室確率Ｐ（ｔ）が所定の入室確率Ｐ１未満の時間帯ではＴｓ０（Ｄ）をさらに温度幅ΔＴｄ低負荷側に設定変更する。
【００７３】
これによって、入室確率がより低い不在時間帯での省エネルギー効果をより高めることができる。
【００７４】
なお、上記実施例において、人の赤外線により人が在室しているか不在かを検出する人検出手段２の代わりに、出入口に照射するビームの遮断等により入退室を検出し、室内の人の在不在を判定してもよく、所定の室内の在不在を検出できる既存のセンサ技術を用いても同様の効果を得ることができる。
【００７５】
【発明の効果】
上記実施例から明らかなように、請求項１に記載の発明は、制御手段により、各人検出手段の出力において在室が検出された各室の空調設定温度は、在室設定温度入力手段で室毎に入力された在室時に快適な在室設定温度に設定される。
【００７６】
また、全室不在が検出された場合の不在の各室の空調設定温度は、室外から入室を想定し室外環境検出手段の出力を基に在室時の設定温度より低負荷の所定の設定温度に設定される。一部室不在が検出された場合の不在の各室の空調設定温度は、他の在室からの入室を想定し在室が検出された室の各室内環境検出手段の出力を基に在室設定温度より低負荷の所定の設定温度に設定される。
【００７７】
これによって、在室においては、空調使用者が要求する快適環境が得られる。不在室においては、不在室へ室外からの入室の可能性があるか、他の在室から入室の可能性があるかが判別され、それぞれの場合に応じて、不在室の空調設定温度を入室時の快適性が損なわれない範囲でより低負荷側に設定されるため、不在室の空調によるエネルギー消費を最小限に抑えることができるという効果を奏する。
【００７８】
請求項２に記載の発明は、請求項１記載の室別空調制御装置において、各人検出手段の出力が全室不在の場合、室外からの室内の不在室への人室を想定し、前記不在室の空調設定温度を、冷房時は外気温が高い程、暖房時は外気温が低い程低負荷側になるように設定するものである。
【００７９】
これによって、室外からの不在室へ入室した時の快適性を損なわない範囲で不在室のエネルギー消費を最小限に抑えることができるという効果を奏する。
【００８０】
請求項３に記載の発明は、請求項１記載の室別空調制御装置において、各人検出手段の出力が一部室不在の場合、室内の在室から不在室への入室を想定し、前記不在室の空調設定温度を、冷房時は在室する各室の室温の中の最低室温よりも低負荷側に設定し、暖房時は在室する各室の室温の中の最高室温よりも低負荷側に設定するものである。
【００８１】
これによって、室内の在室から不在室へ入室した時の快適性を損なわない範囲で不在室のエネルギー消費を最小限に抑えることができるという効果を奏する。
【００８２】
請求項４に記載の発明は、まず、記憶手段により、日時出力手段で検出され出力される日時毎に各室の人検出手段から出力される各室の在不在状態が記憶され、予測手段により前記記憶手段で過去に記憶されたデータを基に各室における将来の在不在状態が予測される。
【００８３】
次に、制御手段により、前記予測手段からの出力と在室設定温度入力手段で入力された在室時の設定温度とを基に、各在室および各不在室の空調設定温度が設定される。
【００８４】
これにより、近い将来不在が予測される在室の空調設定温度を予め快適性が損なわれない範囲で低負荷側に設定しエネルギー消費を抑えることができる。また、近い将来在室が予測される不在室の空調設定温度を予め快適側に設定し不在室に入室した時の快適性を維持することができる。
【００８５】
請求項５に記載の発明は、請求項４記載の室別空調制御装置において、予測手段により、全室不在時において各不在室がその後在室に変化する時刻を予測する。
【００８６】
そして、初めに在室発生が予測される時刻から所定時間内に不在から在室に変化する不在室の空調設定温度を、在室設定温度入力手段で入力された在室時の設定温度より低負荷側に設定した後、予測された入室時刻の前に低負荷側の設定温度からより在室時の快適設定温度に近い設定に変更するものである。
【００８７】
これによって、入室が近づく以前は設定温度が低負荷側の設定ため不在室の空調によるエネルギーロスを抑えることができ、入室が近づくと快適よりに設定されて入室時の快適性を向上させることができるという効果を奏する。
【００８８】
請求項６に記載の発明は、請求項４記載の室別空調制御装置において、予測手段により、不在から在に変化した室でのその後の滞在時間が予測する。
【００８９】
そして、予測された滞在時間が所定時間以内の場合、その在室の空調設定温度を在室設定温度入力手段で入力された在室時の快適設定温度より低負荷側に設定する。また、予測された滞在時間が前記所定時間を超える場合は在室時の快適側の入力設定にする。
【００９０】
これによって、短期間の滞在が予測され低負荷側の設定温度が許容される室においてはエネルギー消費を抑えることができる。また、長期間の滞在が予測され快適性が優先される室では入室後すぐに十分な快適性を得ることができるという効果を奏する。
【００９１】
請求項７に記載の発明は、請求項６記載の室別空調制御装置において、予測された滞在時間が所定時間以内の室の滞在時間が前記所定時間に達した時、前記在室の低負荷側の設定温度を在室時の快適設定温度に戻すものである。
【００９２】
これによって、予測以上に滞在時間が延長された時でも低負荷側の設定温度が許容できなくなる前に自動的に在室時の設定温度に戻され快適性を維持することができるという効果を奏する。
【００９３】
請求項８に記載の発明は、請求項４記載の室別空調制御装置において、予測手段により在から不在に変化した不在室でのその後の不在時間を予測する。そして、予測された不在時間が所定時間以内の場合はその不在室の設定温度を在室設定温度入力手段で入力された在室時の快適設定温度に設定する。
【００９４】
また、予測された不在時間が前記所定時間を超える場合はその不在室の設定温度を在室時の快適設定温度よりも低負荷の設定にするものである。
【００９５】
これによって、短期間の不在が予測される室では、短期間で室に戻ってきたときに不快感を生じることがなく快適性を維持することができる。また、長期間の不在が予測される室では、不在になった直後から設定温度が低負荷側に設定され、不在室の空調によるエネルギーロスをより少なくすることができるという効果を奏する。
【００９６】
請求項９に記載の発明は、請求項８記載の室別空調制御装置において、制御手段により、予測された不在時間が所定時間以内の室の不在時間が前記所定時間に達した時、前記不在室の快適設定温度を不在時の低負荷側の設定温度に戻すものである。
【００９７】
これにより、予測以上に不在時間が延長された時でも自動的に低負荷側に設定温度に変更されるため不在室の空調によるエネルギーロスを最小限に防ぐことができるという効果を奏する。
【００９８】
請求項１０に記載の発明は、請求項４記載の室別空調制御装置において、予測手段により、不在室における在から不在に変化した後の時刻毎の入室確率を予測し、前記不在室の設定温度を前記入室確率が低い時間帯程より低負荷側にするものである。
【００９９】
これによって、不在室における入室確率がより低い不在時間帯での空調によるエネルギーロスを低減することができる。
【図面の簡単な説明】
【図１】本発明の一実施例を示す室別空調制御装置のブロック構成図
【図２】同一実施例の制御動作を示すフローチャート
【図３】本発明の他の実施例を示す室別空調制御装置のブロック構成図
【図４】同一実施例の制御動作を示す入室時刻が予測された不在室の設定温度の経時変化図
【図５】（ａ）は同一実施例の制御動作を示す滞在時間が所定時間未満と予測された在室の設定温度の経時変化図
（ｂ）は同一実施例の制御動作を示す滞在時間が所定時間以上と予測された在室の設定温度の経時変化図
【図６】（ａ）は同一実施例の制御動作を示す不在時間が所定時間未満と予測された不在室の設定温度の経時変化図
（ｂ）は同一実施例の制御動作を示す不在時間が所定時間以上と予測された不在室の設定温度の経時変化図
【図７】同一実施例の制御動作を示す入室確率が予測された不在室の設定温度の経時変化図
【符号の説明】
１室別空調制御装置
２人検出手段
３室内環境検出手段
４室外環境検出手段
５在室設定温度入力手段
６空調機
７制御手段[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a room air-conditioning control device that individually controls an air-conditioning environment of each room in a building.
[0002]
[Prior art]
Conventionally, this type of room air-conditioning control device can individually control the air-conditioning of each room in a building such as a house or a small office. The stop or operation setting needs to be changed. In addition, in order to automate these operations, a sensor for detecting the presence or absence of a person is provided for each room, and the air conditioning setting temperature of the room where the room is present is set to a predetermined value giving priority to comfort, and the air conditioning setting of the room where no room is present is set. There has been invented a control device for automatically controlling the temperature to a predetermined value on the low load side of the room in which the room is located. Furthermore, in order to eliminate the fluctuation of the air-conditioning operation in the absence or stay in a short period and to ensure the safety of the air-conditioning, the air-conditioning set temperature is changed after a lapse of a predetermined time after the state change to the absence or the presence. .
[0003]
[Problems to be solved by the invention]
However, with the above-described conventional configuration, the air-conditioning set temperature when the resident is absent is set uniformly regardless of the environment in which the resident stayed before entering the absent room. As a result, if the staying environment before entering the room is different, the comfort will be different even if the air conditioning environment after entering the room is the same, so the comfort when entering the absent room will be impaired, or conversely, it will be too comfortable There was a problem that the energy saving effect at the time could not be obtained.
[0004]
Also, if the air-conditioning setting temperature during the absence is set uniformly, if it is close to the comfortable setting when the room is present, the energy loss during the absence will be large in the room that has been absent for a long time, and conversely, it will be the setting of the lower load setting. In such a case, there is a problem that sufficient comfort cannot be obtained immediately after entering the room in a room where the occupancy time is long and comfort is prioritized.
[0005]
In addition, since the air-conditioning set temperature is not changed until a predetermined time has elapsed even though the state changes from absent to occupied or from occupied to absent, if there is a change from occupied to absent within that predetermined time, the air conditioner is not activated. A comfortable setting in the room is maintained, during which energy loss occurs. Conversely, when changing from absent to occupied, the setting on the low load side when absent is maintained, and there is a problem that sufficient comfort cannot be obtained during that time. In addition, after the uniform predetermined time has elapsed, if the occupancy occurs immediately after the air conditioning set temperature is changed to the low load side, the comfort at the time of entry is impaired, or the absence is detected immediately after the change to the comfortable side. There is a problem in that energy loss occurs when it occurs.
[0006]
The present invention is to solve such a conventional problem, and detects a change in the presence / absence state of each room in a building, and detects the timing of entry from outside the room and movement between rooms, and the stay environment associated with such movement. By setting the air-conditioning environment of each room assuming changes in advance, a necessary and sufficient comfortable environment can always be realized in the room and time zone where comfort is required, and in the room and time zone where energy saving is required Energy saving can be achieved as long as comfort is not impaired.
[0007]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention provides an apparatus for detecting individual presence and absence of a person in each room, an indoor environment detection unit for detecting an indoor environment in each room, and an outdoor environment. The outdoor environment detection means, the occupancy set temperature input means for inputting the set temperature when the air conditioning user is occupied by each room, and the presence / absence state of each room by the output of the individual detection means detected the presence of the room. The air conditioning set temperature of each room is set to each room set temperature input by the room set temperature input means, and the air conditioning set temperature of each room where the absence is detected is detected. A predetermined absent room set temperature is set based on the output of each indoor environment detecting means of the set room, and in a case where all rooms are absent, a predetermined absent room set temperature is set based on the output of the outdoor environment detecting means. Control means.
[0008]
In addition, each person detecting means for detecting the presence or absence of a person in each room, room setting temperature input means for air conditioning user to input the set temperature at the time of the room for each room, date and time output means to output the date and time A storage unit for storing the presence / absence state of each room at each date and time based on the output of the date / time output unit and the human detection unit of each room; and a future location of each room based on data stored in the storage unit in the past. A predicting means for predicting an absent state; and a control means for setting an air-conditioning set temperature of each occupied room and each absent room based on the input of the occupied room set temperature input means and the output of the predicting means.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
According to the first aspect of the present invention, the air conditioning set temperature of each room in which the occupancy is detected by the control means in the output of the individual detection means is set when the occupancy is input for each room by the occupancy set temperature input means. It is set to a comfortable room setting temperature. In addition, when the absence of a part of the room is detected, the air-conditioning set temperature of the absent room is based on the output of each indoor environment detecting means of the room in which the room is detected assuming entry from another room. The load is set to a predetermined set temperature lower than the room set temperature. When the absence of all rooms is detected, the set air-conditioning temperature of each absent room is set to a predetermined temperature with a lower load than the set temperature when the room is present, based on the output of the outdoor environment detection means, assuming entry from outside. Is done.
[0010]
As a result, in the occupied room, a comfortable environment required by the air conditioning user can be obtained. In addition, in the absence room, it is determined whether there is a possibility of entering the absence room from outside the room or a possibility of entering another absence room, and according to each case, the air conditioning set temperature of the absence room is determined. Is set to a lower load side as long as the comfort at the time of entering the room is not impaired, and unnecessary energy consumption in air conditioning of the absent room can be suppressed.
[0011]
According to a second aspect of the present invention, in the room air-conditioning control device of the first aspect, when the output of each person detecting means is not present in all the rooms, the control means controls the movement of the person from the outside to the absent room. Assuming that the air-conditioning set temperature of the absence room is set such that the higher the outside air temperature detected by the outdoor environment detecting means is during cooling and the lower the temperature is during heating, the lower the load becomes.
[0012]
This makes it possible to minimize the energy consumption due to the air conditioning of the absent room without impairing the comfort when entering the absent room from the outside irrespective of the stay environment outside the room.
[0013]
According to a third aspect of the present invention, in the room air-conditioning control device according to the first aspect, when the output of each of the individual detection means is partially absent, the control means causes the control section to transfer the person from the occupied room to the absent room. Assuming movement, the air-conditioning set temperature of the absent room is set to a lower load side than the lowest room temperature among the room temperatures of the rooms based on the output of each room environment detecting means during cooling. In addition, during heating, the load is set to a lower load side than the maximum room temperature among the room temperatures of the rooms in which the rooms are located.
[0014]
As a result, even when the user enters the absent room from the most comfortable room, the comfort at the time of entering the room is not impaired, and the energy consumption by air conditioning in the absent room can be minimized.
[0015]
According to a fourth aspect of the present invention, first, the presence / absence state of each room output from the human detection means of each room is stored by the storage means at each date and time detected and output by the date and time output means, and is predicted by the prediction means. A future presence / absence state in each room is predicted based on data stored in the storage means in the past. Next, the control unit sets the air-conditioning set temperature of each occupied room and each absent room based on the output from the prediction unit and the set-in-room set temperature input by the occupied set temperature input unit. .
[0016]
As a result, it is possible to set the air-conditioning setting temperature of the occupied room where the absence is predicted in the near future to the low load side within a range where the comfort is not impaired in advance, thereby suppressing the energy consumption.
[0017]
In addition, the air-conditioning set temperature of the absent room, which is predicted to be present in the near future, can be set to the comfortable side in advance, and the comfort when entering the absent room can be maintained.
[0018]
According to a fifth aspect of the present invention, in the room-specific air-conditioning control device according to the fourth aspect, first, when the absence of all the rooms is detected by the individual detecting means by the predicting means, the time when entry into each room occurs thereafter. Is predicted.
[0019]
Next, before the time that is a predetermined time before the earliest predicted entry time among the predicted entry times for each of the rooms, the control unit inputs the air-conditioning set temperature of each absent room with the in-room set temperature input unit. It is set to a lower load side than the set room temperature. Further, after the time that is a predetermined time before the earliest predicted entry time, the air-conditioning set temperature of each absent room for which the predicted entry time within a predetermined time has been obtained from the earliest predicted entry time is calculated from the absent room set temperature. The setting is changed from the occupancy setting temperature.
[0020]
By this, it is possible to minimize the energy consumption due to air conditioning of the absent room by setting a lower load side before the time when there is a high possibility of entry, and to set a low load side at the time when there is a high possibility of entering the room. The setting can be changed from "comfortable" to "comfortable" so that the comfort when entering the room is not impaired.
[0021]
According to a sixth aspect of the present invention, in the room air-conditioning control device according to the fourth aspect, first, the staying time of the room changed from absent to present is predicted by the predicting means.
[0022]
Next, the control means sets the air-conditioning set temperature of the room changed from absent to present, when the predicted stay time is within a predetermined time, the low-load side set at the absence even after the change from absent to present. Maintained at set temperature. Further, when the predicted stay time exceeds the predetermined time, when changing from absence to presence, the comfort setting during occupancy input by the occupancy setting temperature input means from the setting temperature on the low load side in the absence. The setting is changed to temperature.
[0023]
As a result, energy consumption can be suppressed in a room in which a short-term stay is predicted and the set temperature on the low load side is allowed. In a room where long-term stay is predicted and comfort is prioritized, sufficient comfort can be obtained immediately after entering the room.
[0024]
According to a seventh aspect of the present invention, in the room-specific air-conditioning control device according to the sixth aspect, the air-conditioning set temperature of the occupied room whose stay time predicted by the predicting means is less than a predetermined time is determined by the control means. When the predetermined time has been reached, the set temperature on the low load side of the occupancy is returned to the occupancy set temperature.
[0025]
As a result, even when the stay time is extended beyond the prediction, the set temperature at the time of staying in the room is automatically returned to the set temperature before the room becomes unacceptable and the comfort can be maintained.
[0026]
According to an eighth aspect of the present invention, in the room air-conditioning control device of the fourth aspect, first, the absent time of the room that has changed from being present to being absent is predicted by the predicting means.
[0027]
Next, when the predicted absence time is within a predetermined time, the air-conditioning set temperature of the room that has changed from present to absent by the control means is the room set temperature input means at the time of being present even after the change from present to absent. Is maintained at the comfortable set temperature entered in. Further, when the predicted absence time exceeds the predetermined time, the setting temperature is changed from the comfort setting temperature in the room to the low load side setting temperature in the absence when the state changes from the presence to the absence.
[0028]
Thus, in a room where short-term absence is predicted, it is possible to maintain comfort without discomfort when returning to the room in a short period of time. Further, in a room where the absence is predicted for a long time, the set temperature is set to the low load side immediately after the absence, and the energy loss due to air conditioning in the absence room can be further reduced.
[0029]
According to a ninth aspect of the present invention, in the room-based air-conditioning control device according to the eighth aspect, the control unit sets the air-conditioning set temperature of the absent room predicted by the predicting unit within the predetermined time to the absent time. When the predetermined time has been reached, the comfort set temperature of the absent room is returned to the set temperature on the low load side when the absent room is absent.
[0030]
As a result, even when the absence time is extended more than expected, the temperature is automatically changed to the set temperature on the low load side, so that energy loss can be minimized.
[0031]
According to a tenth aspect of the present invention, in the room air-conditioning control device according to the fourth aspect, first, the prediction unit predicts the entry probability at each time after the start of absence in each absence room. Next, the controller sets the air-conditioning set temperature of each of the absent rooms to a lower load side from a time when the room entry probability is lower.
[0032]
As a result, it is possible to further reduce the energy loss due to the air conditioning in the absence time period where the entry probability is lower.
[0033]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0034]
(Example 1)
FIG. 1 shows a block diagram of a first embodiment of a room air conditioning control device according to the present invention.
[0035]
The room-specific air-conditioning control device 1 includes a person detecting means 2 installed in each room for detecting whether a person is present or absent by infrared rays or the like of a person, and a room temperature installed in each room as room temperature. Indoor environment detecting means 3 for detecting the outside air temperature and the like as the outdoor environment, and an occupied room set temperature input means 5 for inputting the set temperature when the air conditioner is occupied by each room. Based on the outputs of the human detecting means 2 of each room, the indoor environment detecting means 3 of each room, the outdoor environment detecting means 4 and the in-room setting temperature inputting means 5 of each room, the air conditioning set values such as the temperature of each room are determined. And control means 7 for controlling the operation of the air conditioner 6 installed in each room so that the room temperature based on the output of the indoor environment detecting means 3 of each room matches the determined air conditioning set value of each room. ing.
[0036]
With this configuration, the presence of the room is set to a comfortable environment desired by the air conditioning user. Regarding the absence room, taking into account that the comfort when entering the absence room depends on the stay environment before entering the absence room, firstly the possibility of entering the absence room from the outside of the room from the absence state of each room It is determined whether or not there is a possibility of entry from another room. Then, according to the staying environment before entering the room in each case, the air-conditioning set temperature of the absent room is set to a lower load side within a range where the comfort at the time of entering the room is not impaired.
[0037]
Therefore, in the absent room, the comfort at the time of entering the room is not impaired regardless of the staying environment before entering the absent room, and the energy loss due to the air conditioning of the absent room before entering the room can be minimized.
[0038]
FIG. 2 is a flowchart showing the control operation of the present embodiment.
First, the presence / absence status of each room is detected by the person detection means in each room (S1), and it is determined whether all rooms are absent, both rooms are absent, or all rooms are absent (S2).
[0039]
When all the rooms are absent, the outdoor environment detection means detects the outside air temperature To (S3), and the control means assumes an entry from outside the room, and sets the air-conditioning set temperature Ts0 (n) of each absent room as a function of the outside air temperature. It is set to Ta0 determined by f1 (To) (S4), and the operating frequency F (n) of the air conditioner of each absent room is controlled so that the room temperature of each absent room becomes Ta0 (S5). Ta0 is a value that is set to a lower load side as the outside air temperature is higher during cooling and as the outside air temperature is lower during heating, and energy consumption is maintained within a range that does not impair comfort when entering the absent room from outside. Can be minimized.
[0040]
In S6, the presence / absence state of each room is detected again, and it is determined whether or not entry into the room has occurred. If all rooms are absent, the process returns to S3, and if entry occurs, the air-conditioning set temperature Ts1 (k) of the room is input and set by the occupancy set temperature input means, and the occupancy set temperature Ti (k) is set. (S7), and the operating frequency F (k) of the air conditioner in the room is controlled so that the room temperature of the occupied room becomes the set air-conditioning set temperature (S8).
[0041]
Next, when there is both the room and the absence in S2, the room environment detection means detects the room temperature Ta (n) of each room (S9), and the control means absent from the room in which the most comfortable set temperature is set. The air-conditioning set temperature Ts0 (m) of each absent room is set to a predetermined temperature from the minimum room temperature Ta (min) among the room temperatures of the occupied rooms during cooling so that the comfort when entering the room can be kept to a minimum. The width ΔTc is high, and during heating, the temperature is set to be lower than the maximum room temperature Ta (max) by a predetermined temperature width ΔTh from the maximum room temperature Ta (max) to the low load side (S10), and the air conditioning set temperature Ts1 (1) of each room in the room is set. ) Is set to the in-room set temperature Ti (1) input and set for each room by the in-room set temperature input means (S11).
[0042]
The control means controls the operating frequency F (n) of the air conditioner of each room so that the room temperature of each room in the room and the room not present becomes the set air-conditioning set temperature (S12).
[0043]
As a result, energy consumption can be minimized within a range in which comfort at the time of entry from the occupied room to the absence room is not impaired.
[0044]
Further, in the case of all the rooms being occupied, the air-conditioning set temperature Ts1 (n) of each of the occupied rooms is set to the occupied set temperature Ti (n) input and set for each room by the occupied set temperature input means. It is set (S13). The control means outputs and controls the operating frequency F (n) of the air conditioner of each room so that the room temperature of each room in the room becomes the set air-conditioning set temperature (S14).
[0045]
By repeating the operations of S1 to S14, a comfortable environment can always be maintained for the occupied room, and for the absent room, the comfort when entering the absent room regardless of the staying environment before entering the absent room. And the energy loss due to air conditioning of the absent room before entering the room can be minimized.
[0046]
(Example 2)
Individual detection means for detecting the presence or absence of a person in each room, occupancy setting temperature input means for the air conditioning user to input the occupancy setting temperature for each room, and date and time output means for detecting and outputting the date and time A storage unit for storing the presence / absence state of each room for each date and time based on the output of the date and time output unit and the human detection unit of each room; and a future of each room based on data stored in the storage unit in the past. A predicting means for predicting the presence / absence state; and a control means for setting an air-conditioning set temperature of each occupied room and each absent room based on an input of the occupancy setting temperature input means and an output of the prediction means.
[0047]
FIG. 3 shows a block diagram of a room-based air-conditioning control device according to a second embodiment of the present invention.
[0048]
The room-based air-conditioning control device 1 includes a person detection unit 2 that detects whether a person is present or absent based on infrared rays of a person installed in each room, and a temperature setting when the air-conditioning user is present in each room. , The date and time output means 8 for outputting the date and time, and the presence / absence state of each room for each date and time is stored by the output of the date and time output means 8 and the person detection means 2 for each room. Storage means 9, prediction means 10 for predicting the future presence / absence state of each room based on data stored in the storage means 9 in the past, and input of the room setting temperature input means 5 and prediction means 10. The air-conditioning set temperature of each occupied room and each absent room was set based on the output, and the room was installed in each room so that the indoor environment by the output of the indoor environment detecting means 3 of each room matched the air-conditioning set value of each room. Control means 7 for controlling the operation of the air conditioner 6;
[0049]
With this configuration, for an occupied room whose absence is predicted in the near future, the air conditioning set temperature can be set in advance to a low load side within a range in which comfort is not impaired, and energy consumption can be suppressed. In addition, for an absent room whose presence is predicted in the near future, the air conditioning set temperature can be set to a comfortable side in advance, and the comfort when entering the absent room can be maintained.
[0050]
FIG. 4 is a time-dependent change diagram (at the time of heating) of the set temperature of the absent room in which the entry time is predicted by the control operation when all the rooms are absent according to the present embodiment.
[0051]
First, when the absence of all the rooms is detected by the person detecting means 2 of each room at time ta0, the prediction means 10 calculates ± from the combination data of the presence / absence state of each room for each date and time in the storage means 9 around the time ta0. Data in which all rooms have been absent in the past in the time zone Δta0 is extracted. Based on the extracted data, the average value of the entry time of each room is calculated as a predicted value of the entry time of each room.
[0052]
The set temperature of the room whose entry time is predicted during the predetermined time Δta1 from the earliest entry time ta1 among the predicted entry times of each room, and the set temperature Ts0 when all rooms are absent before the time Δta2 before ta1. Shift in the comfortable direction by ΔTs0.
[0053]
As a result, the air-conditioning set temperature of an absent room where entry into the room is likely to occur from outside can be set to be comfortable from the low load side in accordance with the predicted entry time. The energy loss can be suppressed by being set on the side, and it is set to be more comfortable when entering the room, and comfort is not impaired when entering the room.
[0054]
FIG. 5 is a diagram illustrating a change over time of the set temperature during heating of an occupied room in which the stay time is predicted by the control operation of the present embodiment.
[0055]
First, when the change from absence to presence is detected in the room B by the human detection means 2 at time tb0, the prediction means 10 calculates the time tb0 from the combination data of the presence / absence state of each room for each date and time in the storage means 9. The stay time until the presence of the subsequent room B changes to the absence when the same combination of the presence / absence state has occurred in the past in the time zone of ± Δtb0 around the center is extracted as data.
[0056]
The average value Δtb1 of the stay time in the room B is calculated as a predicted value of the stay time in the room B based on the extracted data. When the predicted stay time is within the predetermined time Δtb2 (FIG. 5A), the control means 7 maintains the set temperature of the room B as the set temperature Ts0 (B) on the low load side in the absence.
[0057]
When the predicted stay time exceeds the predetermined time Δtb2 (FIG. 5B), the set temperature of the room B is changed to the set temperature Ts1 (B) input by the in-room set temperature input unit 5.
[0058]
As a result, energy consumption can be suppressed in a room where a short-term stay is predicted and the set temperature on the low load side is allowed. In a room where long-term stay is predicted and comfort is prioritized, sufficient comfort can be obtained immediately after entering the room.
[0059]
Further, as shown in FIG. 5A, when the estimated stay time is shorter than the predetermined time Δtb2, the set temperature of the room B is input by the occupied set temperature input means 5 when the stay time reaches Δtb2. The temperature is changed to the set temperature Ts1 (B).
[0060]
As a result, even when the stay time is extended more than expected, the set temperature in the room is automatically returned to the set temperature in the room before the set temperature on the low load side becomes unacceptable, and the comfort can be maintained.
[0061]
FIG. 6 is a diagram illustrating a temporal change of the set temperature at the time of heating the absent room where the absent time is predicted by the control operation of the present embodiment.
[0062]
First, at time tc0, when the change from the occupied state to the absent state is detected in the room C by the human detecting means 2, the predicting means 10 calculates the time from the combined data of the absent state of each room for each date and time in the storage means 9. When the same combination of the presence / absence state has changed in the past in the time zone of ± Δtc0 around tc0, the absence time until the absence of the room C changes to the presence is extracted as data.
[0063]
The average value Δtc1 of the absence time of the room C is calculated as a predicted value of the absence time of the room C based on the extracted data. When the predicted absence time is less than the predetermined time Δtc2 (FIG. 6A), the control unit 7 maintains the set temperature of the room C at the set temperature Ts1 (C) input by the in-room set temperature input unit 5. .
[0064]
When the predicted absence time is equal to or longer than the predetermined time Δtc2 (FIG. 6B), the set temperature of the room C is changed to the set temperature Ts0 (C) on the low load side when the absence is present.
[0065]
Thereby, in a room where short-term absence is predicted, it is possible to maintain comfort without causing discomfort when returning to the room in a short period of time.
[0066]
Further, in a room where the absence is predicted for a long time, the set temperature is set to the low load side immediately after the absence, and the energy loss due to air conditioning in the absence room can be further reduced.
[0067]
Further, as shown in FIG. 6A, when the predicted absence time is less than the predetermined time Δtc2, when the absence time reaches Δtc2, the set temperature of the room B is reduced to the set temperature Ts0 ( Change to C).
[0068]
As a result, even when the absence time is extended more than expected, the temperature is immediately returned to the low load side set temperature, and the energy loss can be minimized.
[0069]
FIG. 7 is a diagram illustrating a temporal change of a set temperature at the time of heating of an absent room in which an entry probability due to a control operation is predicted in the present embodiment.
[0070]
When the change from the occupied room to the absent state is detected in the room D by the human detection unit 2 at the time td0, the prediction unit 10 determines the time td0 from the combination data of the presence / absence state of each room for each date and time in the storage unit 7. In the data in which the same combination of the presence / absence states has changed in the time zone of ± Δtd0 at the center, the time change data of the presence / absence due to the lapse of time in room D is extracted.
[0071]
The room entry probability P (t) at each time t after the time td0 is calculated based on the extracted presence / absence time change data using a calculation formula (room entry probability = number of room data at time t / number of extracted data). Predict the entry probability of D.
[0072]
The control means 7 sets the low-load-side set temperature Ts0 (D) in the absence when the predicted entry probability P (t) in the absence room D is equal to or greater than the predetermined entry probability P1. ), And Ts0 (D) is further changed to the temperature width ΔTd lower load side in a time zone in which the predicted entry probability P (t) is less than the predetermined entry probability P1.
[0073]
As a result, it is possible to further enhance the energy saving effect in the absence time period where the entry probability is lower.
[0074]
In the above embodiment, instead of the human detecting means 2 for detecting whether a person is present or absent by infrared light of a person, entering and leaving the room is detected by cutting off a beam irradiating an entrance and exit, and a person inside the room is detected. The presence / absence may be determined, and the same effect can be obtained by using an existing sensor technology capable of detecting the presence / absence in a predetermined room.
[0075]
【The invention's effect】
As is apparent from the above embodiment, in the invention according to claim 1, the controller sets the air-conditioning set temperature of each room in which the occupancy is detected in the output of the individual detection means by the occupancy set temperature input means. A comfortable occupancy setting temperature is set when the occupancy is input for each room.
[0076]
In addition, when the absence of all rooms is detected, the set air-conditioning temperature of each of the absent rooms is a predetermined set temperature of a lower load than the set temperature at the time of the room based on the output of the outdoor environment detection means, assuming entry from the outside. Is set to The air-conditioning set temperature of each absent room when the absence of a part of the room is detected is set based on the output of each indoor environment detecting means of the room where the presence of the room is detected, assuming entry from another room. The temperature is set to a predetermined set temperature lower than the temperature.
[0077]
As a result, in the occupied room, a comfortable environment required by the air conditioning user can be obtained. In an absent room, it is determined whether there is a possibility of entering the absent room from outside or a possibility of entering a room from another room, and the air conditioning set temperature of the absent room is entered according to each case. Since it is set to a lower load side as long as the comfort at the time is not impaired, there is an effect that the energy consumption due to the air conditioning of the absent room can be minimized.
[0078]
According to a second aspect of the present invention, in the room-specific air-conditioning control device according to the first aspect, in a case where the output of each person detecting means is not present in all the rooms, the room is assumed to be a human room from the outside to the absent room in the room. The air-conditioning set temperature of the absent room is set such that the higher the outside air temperature is during cooling, and the lower the outside air temperature is during heating, the lower the load is.
[0079]
Thereby, there is an effect that the energy consumption of the absent room can be minimized as long as the comfort when entering the absent room from the outside is not impaired.
[0080]
According to a third aspect of the present invention, in the room air-conditioning control device according to the first aspect, when the output of each of the individual detection means is partially absent, it is assumed that the room enters the absent room. Set the air-conditioning temperature of the room to a lower load than the lowest room temperature of the room in which the room is located during cooling, and load less than the maximum room temperature of the room in each room during heating. Is set on the side.
[0081]
Thereby, there is an effect that the energy consumption of the absent room can be minimized within a range that does not impair the comfort when entering the absent room from the indoor room.
[0082]
According to a fourth aspect of the present invention, first, the presence / absence state of each room output from the human detection means of each room is stored by the storage means at each date and time detected and output by the date and time output means, and is predicted by the prediction means. A future presence / absence state in each room is predicted based on data stored in the storage unit in the past.
[0083]
Next, the control unit sets the air-conditioning set temperature of each occupied room and each absent room based on the output from the prediction unit and the set-in-room set temperature input by the occupied set temperature input unit. .
[0084]
As a result, it is possible to set the air-conditioning setting temperature of the occupied room where the absence is predicted in the near future to the low load side within a range where the comfort is not impaired in advance, thereby suppressing the energy consumption. In addition, the air-conditioning set temperature of the absent room, which is predicted to be present in the near future, can be set to the comfortable side in advance, and the comfort when entering the absent room can be maintained.
[0085]
According to a fifth aspect of the present invention, in the room-specific air-conditioning control device according to the fourth aspect, the prediction unit predicts a time at which each of the absent rooms will be changed to the occupied room after the absence of all the rooms.
[0086]
Then, the air-conditioning set temperature of the absent room, which changes from absent to the occupied state within a predetermined time from the time when the occupancy is first predicted, is lower than the occupied set temperature input by the occupied set temperature input means. After the setting on the load side, before the predicted entry time, the setting temperature on the low load side is changed to a setting closer to the comfort setting temperature in the room.
[0087]
As a result, since the set temperature is set to the low load side before entering the room, energy loss due to air conditioning in the absent room can be suppressed, and it is set to be more comfortable when entering the room, and the comfort when entering the room can be improved. It has the effect of being able to do it.
[0088]
According to a sixth aspect of the present invention, in the room air-conditioning control device according to the fourth aspect, the predicting means predicts a subsequent stay time in the room changed from absent to present.
[0089]
If the predicted stay time is within the predetermined time, the air conditioning set temperature of the occupancy is set to a lower load side than the occupancy set temperature input by the occupancy setting temperature input means. If the predicted staying time exceeds the predetermined time, the input setting is made on the comfortable side when the user is in the room.
[0090]
As a result, energy consumption can be suppressed in a room where a short-term stay is predicted and the set temperature on the low load side is allowed. In addition, in a room where long-term stay is predicted and comfort is prioritized, there is an effect that sufficient comfort can be obtained immediately after entering the room.
[0091]
According to a seventh aspect of the present invention, in the room air-conditioning control device according to the sixth aspect, when the stay time of a room whose predicted stay time is within a predetermined time reaches the predetermined time, the low load on the room is reduced. The set temperature on the side is returned to the comfortable set temperature in the room.
[0092]
As a result, even when the stay time is extended more than expected, the set temperature on the low load side is automatically returned to the set temperature in the room before the set temperature becomes unacceptable, and the comfort can be maintained. .
[0093]
According to an eighth aspect of the present invention, in the room air-conditioning control device according to the fourth aspect, the subsequent absence time in the absent room changed from the presence to the absence is predicted by the prediction means. If the predicted absent time is within a predetermined time, the set temperature of the absent room is set to the in-room comfortable set temperature input by the in-room set temperature input means.
[0094]
Further, when the predicted absence time exceeds the predetermined time, the setting temperature of the absence room is set to a lower load than the comfort setting temperature when the room is present.
[0095]
Thereby, in a room where short-term absence is predicted, it is possible to maintain comfort without causing discomfort when returning to the room in a short period of time. Further, in a room in which the absence is predicted for a long period, the set temperature is set to the low load side immediately after the absence, and there is an effect that the energy loss due to air conditioning in the absence room can be further reduced.
[0096]
According to a ninth aspect of the present invention, in the room air-conditioning control device according to the eighth aspect, when the absence time of the room whose predicted absence time is within a predetermined time reaches the predetermined time, the absence of the room is controlled by the control means. This is to return the comfortable set temperature of the room to the set temperature on the low load side when the user is not present.
[0097]
Accordingly, even when the absent time is extended more than predicted, the temperature is automatically changed to the set temperature on the low load side, so that there is an effect that the energy loss due to the air conditioning of the absent room can be minimized.
[0098]
According to a tenth aspect of the present invention, in the room-specific air-conditioning control device according to the fourth aspect, the prediction unit predicts an entry probability at each time after a change from the presence to the absence in the absence room, and sets the absence room. The temperature is set to be lower than the time period when the entry probability is lower.
[0099]
As a result, it is possible to reduce the energy loss due to air conditioning in the absence time period where the probability of entering the absence room is lower.
[Brief description of the drawings]
FIG. 1 is a block diagram of a room air-conditioning control device according to an embodiment of the present invention.
FIG. 2 is a flowchart showing a control operation of the same embodiment.
FIG. 3 is a block diagram of a room air-conditioning control device showing another embodiment of the present invention.
FIG. 4 is a diagram showing a change with time of a set temperature of an absent room in which a room entry time is predicted, showing a control operation of the same embodiment;
FIG. 5A is a time-dependent change diagram of a set temperature of an occupancy in which a stay time is predicted to be less than a predetermined time, which indicates a control operation according to the same embodiment;
(B) is a temporal change diagram of the set temperature of the occupied room in which the stay time indicating the control operation of the same embodiment is predicted to be a predetermined time or more.
FIG. 6 (a) is a diagram showing a change over time of a set temperature of an absent room in which the absent time is predicted to be less than a predetermined time, indicating a control operation of the same embodiment.
(B) is a time-dependent change diagram of the set temperature of the absent room in which the absent time indicating the control operation of the same embodiment is predicted to be a predetermined time or more.
FIG. 7 is a graph showing a change with time of a set temperature of an absent room in which a room entry probability is predicted, showing a control operation of the same embodiment.
[Explanation of symbols]
1 Room-specific air-conditioning controller
2 person detection means
3 Indoor environment detection means
4 Outdoor environment detection means
5 Room setting temperature input means
6 air conditioners
7 control means

Claims

Each person detecting means for detecting the presence or absence of a person in each room; each indoor environment detecting means for detecting the indoor environment of each room; an outdoor environment detecting means for detecting the outdoor environment; Separately, based on the occupancy setting temperature input means for inputting the air-conditioning setting temperature at the time of occupancy, and the presence / absence state of each room by the output of the individual detection means, the air-conditioning setting temperature of each room in which occupancy is detected is calculated. The air-conditioning set temperature set by the room-set temperature input means is set, and the air-conditioning set temperature of each of the rooms where the absence is detected is set. Control means for setting a predetermined absent room set temperature based on the output of the outdoor room, and setting a predetermined absent room set temperature based on the output of the outdoor environment detecting means in the case where all rooms are absent. Room-specific air-conditioning control system.

2. The room-based air-conditioning control device according to claim 1, wherein the control unit sets the absent room set temperature when all rooms are absent below the occupied room set temperature during heating, and higher during cooling, and the outdoor unit during heating. A room-based air-conditioning control device, wherein the temperature is set lower as the outside air temperature detected by the environment detecting means is lower, and is set higher as the outside air temperature detected by the outdoor environment detecting means is higher during cooling.

2. The room-specific air-conditioning control device according to claim 1, wherein the control means sets the absence room set temperature when the part of the room is absent from a maximum room temperature of each room detected by the room environment detection means during the heating. A room-based air-conditioning control device, wherein the room temperature is set to be lower than the minimum room temperature of each room detected by each room environment detecting means during cooling.

Individual detection means for detecting the presence or absence of a person in each room, occupancy setting temperature input means for the air conditioning user to input the occupancy setting temperature for each room, and date and time output means for detecting and outputting the date and time A storage unit for storing the presence / absence state of each room for each date and time based on the output of the date and time output unit and the human detection unit of each room; and a future of each room based on data stored in the storage unit in the past. Prediction means for predicting the presence / absence state, and control means for setting the air-conditioning set temperature of each occupied room and each absent room based on the input of the occupancy set temperature input means and the output of the prediction means. Room-specific air conditioning control device.

5. The room-based air-conditioning control device according to claim 4, wherein the predicting means calculates a predicted value of a time at which entry to each room occurs after the absence of all rooms is detected by the individual detecting means, and the control means includes: Until the time earlier than the earliest time in the predicted entry time by a predetermined time, the air-conditioning set temperature of all the absent rooms is lower than the occupancy set temperature input by the occupancy set temperature input means during heating, and during cooling. The air-conditioning setting of each absent room in which a predicted room entry temperature within a predetermined time from the earliest predicted room entry time is obtained after a time that is a predetermined time before the earliest predicted room entrance time is set to a high predetermined absence room set temperature. The temperature is changed to a predetermined set temperature that is higher than the absent room set temperature and lower than the occupied room set temperature during heating, and a predetermined set temperature that is lower than the absent room set temperature and higher than the occupied room set temperature during cooling. To change to The chamber by the air-conditioning control apparatus according to.

5. The room-based air-conditioning control device according to claim 4, wherein the prediction unit changes the absence to the presence based on data previously stored in the storage unit for the room whose output has changed from the absence to the presence by the individual detection unit. The predicted value of the stay time of the room that has been calculated is calculated, and the control means sets the air-conditioning set temperature of the absent room before the change from the absence to the presence to the room set temperature inputted by the room set temperature input means. Set a low absent room set temperature that is low during heating and high during cooling, and set the air conditioning set temperature of the room after the change from absence to presence, if the predicted stay time is within a predetermined time, the absence room The room-specific air-conditioning control device, wherein the setting is not changed at the set temperature, and the setting is changed to the in-room set temperature when the predicted stay time exceeds a predetermined time.

7. The room-based air-conditioning control device according to claim 6, wherein the control unit is configured to set the air-conditioning set temperature of the occupied room to absent when the occupied stay time of the occupied room whose predicted stay time is predicted to be within the predetermined time reaches the predetermined time. A room-based air-conditioning control device characterized by changing a setting from a room set temperature to a room set temperature.

5. The room-based air-conditioning control device according to claim 4, wherein the predicting unit is configured to switch from the presence to the absence based on data previously stored in the storage unit for the room whose output has changed from presence to absence by the individual detection unit. The predicted value of the changed absence time of the room is calculated, and the control means changes the air-conditioning set temperature of the occupied room before the change from presence to absence to the occupancy set temperature input by the occupancy set temperature input means. If the predicted absent time is within a predetermined time, the setting of the air-conditioning set temperature of the absent room after the change from the present to the absent is not changed and the predicted absent time is set to the predetermined value. A room-based air-conditioning control device characterized in that when the time exceeds, the setting is changed to a predetermined absent room setting temperature lower than the room setting temperature during heating and higher during cooling.

9. The room-based air-conditioning control device according to claim 8, wherein the control unit sets the air-conditioning set temperature of the absent room when the absent time of the absent room whose predicted absent time is within the predetermined time reaches the predetermined time. A room-based air-conditioning control device, wherein the setting is changed from a room set temperature to an absent room set temperature.

5. The room-based air-conditioning control device according to claim 4, wherein the predicting unit is configured to detect each of the absent rooms changed from being present to being absent by the individual detecting unit based on data previously stored in the storage unit. A prediction unit for calculating a predicted value of an entry probability at a time; and setting an air-conditioning set temperature of the room before the absence start to the room set temperature input by the room set temperature input unit, The air-conditioning set temperature of the absent room after the start is set lower than the occupied room set temperature during heating and higher during cooling, and is set lower during heating and lower during cooling as the predicted entry probability is lower. An air-conditioning control device for each room, characterized in that: