JP3987424B2 - Store management system - Google Patents

Description

【００６１】
図４は、本実施の形態に係る店舗管理システムの処理の一例を示すフローチャートである。
【００６２】
ステップＡ１において、機器端末Ｋは、自己の割り当てられた機器Ｎ（図示せず）の負荷データを取得し、ローカルサーバ４に通知する。
【００６３】
ステップＡ２において、機器端末Ｋは、ローカルサーバ４から機器Ｎに対する制御結果である機器制御指令を受け、機器制御指令を確認する。
【００６４】
ステップＡ３において、機器端末Ｋは、機器Ｎに発報する必要があるか否か判断する。
【００６５】
発報する必要がある場合、ステップＡ４において、機器端末Ｋは、発報の目的は機器Ｎの制御か否か判断する。
【００６６】
機器Ｎの制御の場合、ステップＡ５において、機器端末Ｋは、例えばＲＯ出力制御のための制御指令を機器Ｎに発し、ステップＡ３の後段に処理を戻す。
【００６７】
一方、ステップＡ３において発報する必要がないと判断された場合、ステップＡ６において、機器端末Ｋは、ローカルサーバ４に異常が発生しており臨時制御（機器端末Ｋによる自律制御、フェールセーフ制御）が必要か否か判断する。
【００６８】
臨時制御が必要な場合、ステップＡ７において、機器端末Ｋは、負荷データを確認する。
【００６９】
ステップＡ８において、機器端末Ｋは、機器Ｎに発報する必要があるか否か判断する。
【００７０】
発報する必要がある場合、ステップＡ９において、機器端末Ｋは、発報の目的は機器Ｎの制御か否か判断する。
【００７１】
機器の制御の場合、ステップＡ１０において、機器端末Ｋは、例えばＲＯ出力制御のための制御指令を機器Ｎに発し、ステップＡ１の前段に処理を戻す。
【００７２】
ステップＢ１において、ローカルサーバ４は、機器端末Ｋからの負荷データを監視し、状態（ステータス）監視を行う。
【００７３】
ステップＢ２において、ローカルサーバ４は、機器端末Ｋからの負荷データをセンタサーバ６に通知するとともに、機器端末Ｋの状態を確認する。
【００７４】
ステップＢ３において、ローカルサーバ４は、例えば省エネ制御などの各種制御を実行し、制御結果である機器制御指令を機器端末Ｋに通知する。
【００７５】
ステップＢ４において、ローカルサーバ４は、機器端末Ｋ又は機器Ｎの故障診断を行う。
【００７６】
ステップＢ５において、ローカルサーバ４は、故障の診断結果をセンタサーバ６に通知する。
【００７７】
ステップＢ６において、ローカルサーバ４は、センタサーバ６との間のインタフェースが正常か否かを、信号を受けたか否かに基づいて判断する。
【００７８】
信号を受けた場合、ステップＢ７において、ローカルサーバ４は、自己が正常である旨を示すための応答信号をセンタサーバ６に通知する。
【００７９】
ステップＣ１において、センタサーバ６は、負荷データに基づいて状態監視を行う。
【００８０】
ステップＣ２において、センタサーバ６は、機器Ｎ、機器端末Ｋ、ローカルサーバ４の状態一覧を表示する。
【００８１】
ステップＣ３において、センタサーバ６は、状態監視の結果に基づいてトレンドデータを収集する。
【００８２】
ステップＣ４において、センタサーバ６は、機器Ｎに異常があるか否か判断する。
【００８３】
機器Ｎに異常がある場合、ステップＣ５において、センタサーバ６は、警報一覧を表示する。
【００８４】
ステップＣ６において、センタサーバ６は、ローカルサーバ４における故障診断結果が異常を示すか否か判断する。
【００８５】
異常を示さない場合、ステップＣ７において、センタサーバ６は、ローカルサーバ４が正常か否かを、信号と応答信号の送受信により確認する。
【００８６】
ステップＣ８において、センタサーバ６は、ローカルサーバ４に信号を送信したが応答信号を受信することがなく３回連続でタイムアウトが発生したか判断する。
【００８７】
上記ステップＣ６において故障診断結果が異常を示す場合又は上記Ｃ８において３回連続のタイムアウトが発生した場合、ステップＣ９において、センタサーバ６は、故障を示す診断結果を表示する。
【００８８】
図５は、本実施の形態に係る店舗管理システムにおいてローカルサーバ４に異常が発生した場合の処理の一例を示すフローチャートである。
【００８９】
ステップＤ１において、センタサーバ６は、店舗１のローカルサーバ４が正常か判断するための信号をローカルサーバ４に通知し、店舗監視を行う。
【００９０】
ステップＤ２において、センタサーバ６は、ローカルサーバ４から応答信号を受けたか否か判断する。
【００９１】
応答信号を受けていない場合、ステップＤ３において、センタサーバ６は、例えば停電が発生したなど、ローカルサーバ４に異常が発生したと判断し、ステップＤ４において異常が発生した旨を表示する。
【００９２】
ステップＥ１において、ローカルサーバ４は、センタサーバ６から自己が正常か判断するための信号を待つ。
【００９３】
ステップＥ２において、ローカルサーバ４は、センタサーバ６から信号を受けたか否か判断する。
【００９４】
信号を受けた場合、ステップＥ３において、ローカルサーバ４は、応答信号をセンタサーバ６に通知する。
【００９５】
ステップＦ１において、ローカルサーバ４は、機器端末Ｋに臨時制御（例えばフェールセーフ制御）実行フラグを要求し、機器端末Ｋから臨時制御実行フラグを含むステータスデータを取得する。
【００９６】
ステップＦ２において、ローカルサーバ４は、臨時制御実行フラグがＯＮか判断する。
【００９７】
臨時制御実行フラグがＯＮの場合、ステップＦ３において、ローカルサーバ４は、異常履歴データに異常が発生した旨を追加する。
【００９８】
ステップＦ４において、ローカルサーバ４は、臨時制御実行フラグをＯＦＦにする旨の指令を機器端末Ｋに通知する。
【００９９】
ステップＧ１において、機器端末Ｋは、ローカルサーバ４から臨時制御実行フラグなどの含むステータスデータの要求信号を待つ。
【０１００】
ステップＧ２において、機器端末Ｋは、所定時間経過してもローカルサーバ４から要求信号を受けなかった場合、タイムアウトを発生する。
【０１０１】
タイムアウトを発生した場合、ステップＧ３において、機器端末Ｋは、臨時制御を実行する。
【０１０２】
ステップＧ４において、機器端末Ｋは、自己の記録する臨時制御実行フラグをＯＮとする。
【０１０３】
ステップＧ５において、機器端末Ｋは、ローカルサーバ４から要求信号を受け、ステータスデータを通知する必要があるか否か判断する。
【０１０４】
ステータスデータを通知する場合、ステップＧ６において、機器端末Ｋは、ステータスデータをローカルサーバ４に通知する。
【０１０５】
ステップＧ７において、機器端末Ｋは、ローカルサーバ４から制御指令を受け、ローカルサーバ４が正常となったか否か判断する。
【０１０６】
制御指令を受けた場合、ステップＧ８において、機器端末Ｋは、臨時制御を中止し、ローカルサーバ４正常時の処理を実行する。
【０１０７】
制御指令を受けていない場合、ステップＧ９において、機器端末Ｋは、臨時制御を実行する。
【０１０８】
各店舗１〜３に設置されたローカルサーバ４は、上記表１に例示したような店舗管理機能を具備する。
【０１０９】
上記表１に示す店舗管理機能１９の制御は、機器からの負荷データに基づく省エネ制御として実行される。
【０１１０】
ローカルサーバ４正常時は、機器について全ての制御がローカルサーバ４によって管理される。このため、機器を制御（例えばショーケースの除霜ヒータ制御など）するために機器毎に独立に備えられていた制御盤又はシステムコントローラは不要となる。
【０１１１】
また、ローカルサーバ４の得たデータは、ルータ５を経由してセンタサーバ６に通知される。
【０１１２】
ローカルサーバ４は、自己に割り当てられたルータ５のアドレスが変更される場合を考慮し、図６に示すルータアドレス監視を常時行う。
【０１１３】
この図６において、ローカルサーバ４は、ステップＨ１においてルータ５のアドレスを監視し、ステップＨ２においてルータ５のアドレス変更が生じた場合に、ステップＨ３において変更後のアドレスを取得し、ステップＨ４においてセンタサーバに変更後のアドレスを通知する。
【０１１４】
センタサーバ６は、ステップＩ１においてローカルサーバ４を監視し、ステップＩ２において変更後のアドレスにしたがってアドレス管理ファイルを更新し、ステップＩ３においてローカルサーバ４についての変更後のアドレスで設定を行う。
【０１１５】
このように、ルータ５の変更後のアドレスをセンタサーバ６に通知しておくことで、センタサーバ６は、ローカルサーバ４への外部インストール、シャットダウン、省エネパラメータ変更、端末パラメータ変更、遠隔制御、異常設定値変更などを常に実行可能である。
【０１１６】
センタサーバ６のアドレス変更又は新たなセンタサーバ６の設置によりデータ送信先の変更又は追加が生じた場合、図７に示すように、ローカルサーバ４は、ステップＪ１においてセンタサーバ６のアドレスを監視し、ステップＪ２においてアドレス変更可能か判断する。アドレス変更可能な場合、ローカルサーバ４は、ステップＪ３においてセンタサーバ６から新アドレスを取得し、Ｊ４において、通信の設定を行う。
【０１１７】
センタサーバ６は、ステップＬ１においてローカルサーバ４にログインし、ステップＬ２において新アドレスをローカルサーバ４に通知し、ステップＬ３において新アドレスでのデータ受信を待ち、ステップＬ４においてデータを受信した場合、ステップＬ５において新アドレスの登録を完了する。
【０１１８】
ローカルサーバ４のセンタ通信機能１８に含まれる外部インストール機能１８ｄは、上記図６及び図７の処理によってセンタサーバ６とローカルサーバ４との間で通信可能な状態で実行される。
【０１１９】
図８は、外部インストール機能１８ｄによって実行される処理の一例を示すフローチャートである。
【０１２０】
ステップＭ１において、ローカルサーバ４は、外部インストール機能１８ｄの実行を開始する。
【０１２１】
ステップＭ２において、ローカルサーバ４は、外部からのインストールが必要か判断する。
【０１２２】
外部からのインストールが必要な場合、ステップＭ３において、ローカルサーバ４は、センタサーバ６に対してインストールを要求し、センタサーバ６からインストール対象の実行ファイルを受け付け、例えばＲＯＭなどの記録装置を更新する。
【０１２３】
ステップＭ４において、ローカルサーバ４は、リスタート指令をセンタサーバ６から受けつけたか否かによりリスタートを実施するか否か判断する。
【０１２４】
リスタートを実施する場合、ステップＭ５において、ローカルサーバ４は、シャットダウン処理を実行し、リスタートする。
【０１２５】
ステップＭ６において、ローカルサーバ４は、ファイルＮＵＬＬ化を実行し、上記ステップＭ１に処理を戻す。
【０１２６】
ステップＰ１において、センタサーバ６は、ローカルサーバ４からのインストール要求に応じて外部インストールを実行するための機能を選択する。
【０１２７】
ステップＰ２において、センタサーバ６は、実行ファイルの更新が必要か否か判断する。
【０１２８】
更新が必要な場合、センタサーバ６は、ステップＰ３において記録装置より実行ファイルを読み出し、ステップＰ４において実行ファイルを選択し、ステップＰ５において実行ファイルを送信する。
【０１２９】
ステップＰ６において、センタサーバ６は、ローカルサーバのリスタートが必要か判断する。
【０１３０】
リスタートが必要な場合、ステップＰ７において、センタサーバ６は、ローカルサーバ４にリスタート指令を通知する。
【０１３１】
設備用端末、電力用端末は、標準化された一定の入力点数を持つ端末として設計される。
【０１３２】
設備用端末は、例えば、表２、表３に示す入力点数を有する。なお、＊印の付されているＲＯの項目については、臨時制御を実施する。
【０１３３】
【表２】

【０１３４】
【表３】

【０１３５】
また、電力用端末は、例えば、表４、表５に示す入力点数を有する。
【０１３６】
【表４】

【０１３７】
【表５】

【０１３８】
設備用端末のＤＩ、ＲＴＤ、ＡＩデータは、常時ローカルサーバ４に伝達される。電力用端末の電流、電圧、この電流と電圧との積から求められる電力データは、常時ローカルサーバ４に伝達される。
【０１３９】
ローカルサーバ４に異常が発生した場合、上記図５に示すように、センタサーバ６からの信号に対してローカルサーバ４が応答しない、機器端末Ｋに対してステータスデータの要求がないという事象が発生する。
【０１４０】
本実施の形態に係る店舗管理システムの制御の一例として、電磁弁制御について説明する。
【０１４１】
図９は、電磁弁制御の臨時制御の一例を示すタイミングチャートであり、例として電磁弁制御が省エネ制御の場合を示している。
【０１４２】
図９に示される電磁弁制御は、温度の上限値、下限値を設定し、この上下限値を利用して以下のように実行される。
【０１４３】
（１）電磁弁開制御
この制御は、ショーケースの各冷蔵用冷凍機のグループ単位で行われる。
【０１４４】
(1-a) 各ショーケースの温度が、各々の設定値（サーモOFF温度）を上回ったら、全ての電磁弁を開制御する。
【０１４５】
(1-b) 制御中において上記(1-a)後、同一グループ内の全ての電磁弁が一度も閉制御に至っていない場合、設定値（サーモＯＮ温度）を下回り電磁弁が閉となったショーケースが、再び設定値幅の５０％（可変可能値で例えば：（下限値＋上限値）×０．５）を上回った場合、その電磁弁を開制御する。
【０１４６】
(1-c) 冷凍機の再起動タイマ中は電磁弁の開制御は行わない。
【０１４７】
（２）電磁弁閉制御
この制御は、ショーケースの各冷蔵用冷凍機のグループ単位に行われる。
【０１４８】
(2-a) 各々のショーケースの温度が、各々の設定値（サーモＯＮ温度）を下回ったら、全ての電磁弁を閉制御する。
【０１４９】
(2-b) 室温が低い場合、上記条件が不成立であっても高温ショーケース（弁当）の電磁弁を閉制御する。
【０１５０】
（３）冷蔵用冷凍機運転制御
いずれかの電磁弁に開制御指令を出力後、冷蔵用冷凍機を運転制御する。
【０１５１】
（４）冷蔵用冷凍機停止制御
全ての電磁弁を１サイクル中一度でも閉制御したら、冷蔵用冷凍機を停止制御する。なお、１サイクルとは、冷蔵用冷凍機が停止状態から運転し再度停止するまでとする。
【０１５２】
例えば、ローカルサーバ４の停電等が発生して機能が停止し、設備用端末が最後の指令状態のまま運転を継続することになると、ショーケースの弁の開状態が続き、内部に巨大な氷ができ、機器の故障が発生する原因となる。
【０１５３】
そこで、設備用端末に対してＬＯＮノードにて予め臨時制御モード（フェールセーフモード）を設定し、ローカルサーバ４からのデータが途絶えた時、設備用端末はＲＯを所定の方向に動作するとする。
【０１５４】
上記表２、３に示すように、ＲＯ（リレー接点出力）に電磁弁閉（開）指令が割り付けられている設備用端末は、上記図９のように、上下限値にて電磁弁の開／閉制御を行う。
【０１５５】
下限値（Ｌ）＞温度（Ｔ） ＲＯ出力（電磁弁開）
上限値（Ｈ）＜温度（Ｔ） ＲＯ出力（電磁弁閉）
除霜制御の動作中は、電磁弁閉状態とする。自局内に除霜制御が割り当てられていない場合、例えばノードNo.=01hのＲＯ４「除霜ランプ表示（消灯）指令除霜制御」がある場合、除霜制御を考慮した動作を行う。除霜制御発生時刻になった場合、自ＩＯＵ内の電磁弁割り当てＲＯを動作させることにより電磁弁を閉状態にしてから除霜が除霜が割り当てられたＲＯを動作させることにより除霜ヒータ、ランプをＯＮする。除霜制御終了時は、除霜制御が割り当てられたＲＯを動作させることにより除霜ヒータ、ランプをＯＦＦにしてから電磁弁の制御を再開する。
【０１５６】
また、「除霜ランプ表示（消灯）指令除霜制御」に割り付けられる臨時制御時の除霜制御は、通常、オープンケース、冷蔵リーチン、冷凍リーチン毎に回数が異なるため複数のレベルによるパターンが用意される。
【０１５７】
図１０は、除霜制御の臨時制御の一例を示すタイミングチャートである。この図１０に示すように、タイマの開始は、ＲＯレベルの変更が発生してからとする。
【０１５８】
除霜制御は、電磁弁制御と連動した動作を行うが、自ＩＯＵ内に電磁弁制御が割り当てられていない場合、電磁弁制御を考慮した動作は行わない。除霜時間は、所定時間、例えば３０分必ず行う。このため、電磁弁の動作にて開始時刻が遅れた場合には、その分除霜時間が延長される。
【０１５９】
図１１は、設備用端末と電磁弁の接続の一例を示す図である。この図１１に示すように、設備用端末２０のリレー接点出力には、ソフトウェアにて動作させる出力ポート（ＮＯ／ＮＣ）２０ａの他に、端末電源断やハードウェアの暴走が発生した場合にハードウェアにて駆動するリレー接点出力ポート２０ｂを備えている。正常時に、機器２１（例えば電磁弁）の庫内温度を測定するサーモスイッチ２１ａは切断状態とされ、異常時に、サーモスイッチ２１ａは接続状態とされる。設備用端末２０に異常が発生した場合、設備用端末２０と機器２１は機械動作にて運用される構成となっている。
【０１６０】
電力用端末は、例えば上記表４、表５に示す入力を有する。電力用端末の適用される店舗の電力盤には、三相平衡である単相三線の電灯盤、三相不平衡である三相三線の動力盤、また各負荷には単相単線の適用が考えられる。
【０１６１】
図１２は、電力用端末による分電盤からのデータ取得方法の一例を示す図である。この図１２には、分電盤と電力用端末の入力との接続例が表されている。電力用端末のＣＴでは、各相を流れる電流を取得する。ＶＴは、単相三線の場合にＲ−Ｎ−Ｔに接続され、単相三線の場合にＲ−Ｓ−Ｔから入力を行い、単相単線の場合にＲ−Ｎ又はＮ−Ｔに接続される。
【０１６２】
電力用端末は、電圧（ＶＴ）と電流（ＣＴ）の値を直接ベクトル値として積の値を求めることにより、位相を考慮した有効電力を求める。単相電力の場合、一方が未接続となり、値が０となるため、本方法による測定にて問題ない構成となっている。電力量は、この電力をサンプリングし積算して求める。
【０１６３】
以上説明した本実施の形態においては、店舗１において、機器Ｎ₁〜Ｎ_nのセンサ（測定装置）、機器端末Ｋ₁〜Ｋ_n、ローカルサーバ４を追加することで、店舗１を効率的に運用管理でき、省エネを実現させることができる。
【０１６４】
各機器Ｎ₁〜Ｎ_nにシステムコントローラ、演算部、制御盤などが具備されていなくてもソフトウェアによる制御を実行できる。したがって、店舗１に設置できる機器の選択の自由度が増し、店舗１の各機器Ｎ₁〜Ｎ_nを一元管理できる。
【０１６５】
このように店舗１の機器Ｎ₁〜Ｎ_nに特別な装置を備えることなく、外付けの装置で店舗管理を行うことで、機器の変更、追加、削除に対して対処容易であり、店舗管理のためのコスト、機器の導入コストを削減できる。
【０１６６】
機器端末Ｋ₁〜Ｋ_nは、複数の機器種別に対して汎用的に適用でき、複数の機器種別に対して適用できるため、入れ替え前の機器に割り当てられていた機器端末を入れ替え後の機器に対して流用できる。
【０１６７】
各店舗１〜３のローカルサーバ４は、店舗１〜３のルータ５のアドレスを常時監視し、最新のアドレスをセンタサーバ６に通知する。これにより、センタサーバ６から各店舗１〜３のローカルサーバ４への制御指令の通知を確実に行うことができる。
【０１６８】
機器端末Ｋ₁〜Ｋ_nは、例えばローカルサーバ４との間で通信可能か判断することによりローカルサーバ４の異常を検出し、異常発生時にそれぞれ予め登録された機器Ｎ₁〜Ｎ_nに対する臨時制御を実行する。これにより、ローカルサーバ４に異常が発生しても、機器端末Ｋ₁〜Ｋ_nによって個別に臨時制御が実行され、フェールセーフ制御が実行され、制御の信頼性が向上する。
【０１６９】
機器端末Ｋ₁〜Ｋ_nは、自己に異常が発生した場合に、ソフトウェアによる出力とは別のハードウェアによる出力機構を備えており、自己の異常時にハード出力により安全にリレー出力を切り替えることができる。
【０１７０】
なお、ローカルサーバ４は、予め設定された上限値と下限値の間に制御対象の値を収める制御を実行してもよい。一方、制御対象の値が温度であり、制御対象の機器が冷蔵機又は冷凍機の場合、上限値に代えて上限値と下限値の中間値を用い、中間値と下限値の間に制御対象の値を収める制御を実行してもよい。これにより、冷蔵機又は冷凍機の停止時間を長く保つことができ、省エネ制御を実行することができる。
【０１７１】
【発明の効果】
以上詳記した本発明においては、店舗に設置されている各機器の一元管理を容易かつ低コストで実現し、店舗全体の状況を管理することで効率的な機器の運転を行うことができる。
【図面の簡単な説明】
【図１】本発明の実施の形態に係る店舗管理システムの構成の一例を示すブロック図。
【図２】店舗の構成の具体例を示す図。
【図３】ローカルサーバの構成の一例を示すブロック図。
【図４】同実施の形態に係る店舗管理システムの処理の一例を示すフローチャート。
【図５】同実施の形態に係る店舗管理システムにおいてローカルサーバに異常が発生した場合の処理の一例を示すフローチャート。
【図６】ルータアドレス監視処理の一例を示すフローチャート。
【図７】センタサーバのアドレス変更処理の一例を示すフローチャート。
【図８】外部インストール機能の処理の一例を示すフローチャート。
【図９】電磁弁制御の臨時制御の一例を示すタイミングチャート。
【図１０】除霜制御の臨時制御の一例を示すタイミングチャート。
【図１１】設備用端末と電磁弁の接続の一例を示す図。
【図１２】分電盤からのデータ取得方法の一例を示す図
【符号の説明】
１〜３…店舗、４…ローカルサーバ、５，９，１４，１５…ルータ、６…センタサーバ、７…ネットワーク、Ｎ₁〜Ｎ_n…機器、Ｋ₁〜Ｋ_n…機器端末[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a store management system that monitors and controls store equipment.
[0002]
[Prior art]
Various devices such as showcases and air conditioners installed in stores are equipped with sensors. Various devices independently control based on data detected by a sensor provided in the devices.
[0003]
For example, showcases such as an open case, a refrigerated reach, a refrigerated walk-in, and a frozen reach include a control panel that monitors the operation of a refrigerator that blows cold air. In this control panel, mechanical control is mainly performed.
[0004]
Japanese Patent Application Laid-Open No. 5-231758 discloses an apparatus that controls the setting of the operation mode of each showcase based on the inventory amount of each showcase obtained by the POS system and data on the rotation status of the product. Are listed.
[0005]
In Patent Document 2 (Japanese Patent Laid-Open No. 2001-307250), a mail classification is set for each alarm content of a device set in a store, and when an alarm is generated for the device, a mail classification of this alarm content is obtained, and an alarm is issued. A system for creating and sending an occurrence notification e-mail is described.
[0006]
Patent Document 3 (Japanese Patent Laid-Open No. 2001-186659) estimates the power demand of various devices in a store and controls the operation of the various devices so that the estimated power demand does not exceed a predetermined contract power. The system is described.
[0007]
[Patent Document 1]
JP-A-5-231758
[0008]
[Patent Document 2]
JP 2001-307250 A
[0009]
[Patent Document 3]
JP 2001-186659 A
[0010]
[Problems to be solved by the invention]
If monitoring and control is performed for each device provided in the store, the result of the control will be affected only by the characteristics of the individual device, for example, centralizing device management, such as improving the efficiency of energy consumption throughout the store. Is difficult.
[0011]
In Patent Documents 1 to 3, each device is controlled by a system controller or a calculation unit.
[0012]
However, this system controller or calculation unit performs control specialized for the type of device to be controlled. For example, the showcase is controlled by a showcase specific showcase system controller. The same applies to other types.
[0013]
Therefore, in Patent Documents 1 to 3, when adding or changing a device in a store, a device including a system controller or a calculation unit is arranged, or this device-specific system controller or It is also necessary to arrange a calculation unit. For this reason, it is not easy to add or change the equipment in the store, the degree of freedom in selecting the equipment is limited, and the cost for introducing the equipment increases.
[0014]
The present invention has been made in view of the above circumstances, and realizes centralized management of each device installed in a store easily and at low cost, and efficiently manages the status of the entire store. The purpose is to provide a store management system for driving.
[0015]
[Means for Solving the Problems]
Specific means taken for realizing the present invention will be described below.
[0016]
In the first invention, the store management system includes a store server and a device terminal. The store server monitors and controls store equipment. Device terminals are assigned to any of several types of devices. Guess Possible and self-assigned equipment Record the contents of the temporary control for, relay the data between the responsible device and the store server in normal times, When an abnormality of the store server is detected, temporary control is executed for the responsible device.
[0017]
In the second invention, the store system includes a center server, a plurality of store servers, and a plurality of device terminals.
[0018]
The center server monitors and controls a plurality of stores. The plurality of store servers can communicate with the center server via the network, are assigned to each of the plurality of stores, and monitor and control the devices of the store to which the store server is assigned.
[0019]
Multiple device terminals can be assigned to any of multiple types of devices, and the assigned device in charge Record the contents of the temporary control for, relay the data between the responsible device and the store server of the store to which the responsible device belongs, When an abnormality is detected in the store server of the store to which the responsible device belongs, Temporary control Execute.
[0020]
In the second invention, the plurality of store servers monitor the address of the router assigned to the center server to communicate with the center server, and notify the center server of the current address. A control command may be transmitted to a plurality of store servers using addresses notified from the server.
[0021]
In each of the above inventions, the device may switch the operation content based on an external control command, and the device terminal may notify the responsible device of the control command received from the store server or the control command obtained by the temporary control. .
[0022]
In each of the above inventions, the device terminal may execute temporary control when communication with a store server belonging to the same store as that of the device terminal is impossible for a predetermined period.
[0023]
In each of the above inventions, the device terminal includes a first output means for outputting based on the operation of the software at its normal time, and a second output means for outputting based on the operation of the hardware at the time of its own abnormality. It may be provided.
[0024]
In each of the above inventions, the store server executes the temperature management control of the device, transmits a temperature management command obtained as a result of the temperature management control to the device via the device terminal, and the device adjusts the temperature based on the temperature management command. You may do that.
[0025]
In each of the above inventions, the device is a refrigerator or a refrigerator, and the store server is based on the intermediate value between the upper limit value and the lower limit value of the device temperature, and the lower limit value, between the intermediate value and the lower limit value. It is also possible to execute energy waste suppression control that stores the temperature value measured from the device.
[0026]
In each of the above inventions, the device is a power device belonging to a store, and the device terminal is any one of single-phase three-wire, three-phase three-wire, and single-phase single wire for the device. Voltage, current, active power, energy May be measured and notified to a store server belonging to the store.
[0027]
In each said invention, a versatile apparatus terminal is arbitrarily allocated to each apparatus of a shop, without being influenced by apparatus classification. The device terminal operates its own device in accordance with a control command from the store server.
[0028]
Therefore, when a device is added or changed in a store, a device terminal can be assigned to the added or changed device, and the device can be easily managed in the store and between stores simply by making appropriate settings. The degree of freedom increases, and the cost for introducing the equipment decreases.
[0029]
In addition, when an abnormality occurs in the store server, the device terminal performs temporary control by itself. Thereby, even if an abnormality occurs in the store server, the device can be appropriately controlled.
[0030]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0031]
In the present embodiment, the equipment (facility) of the entire store is centrally managed, efficient operation management of the equipment is performed, efficient operation is performed, for example, energy waste is suppressed (hereinafter referred to as “energy saving”). A store management system for realizing store management will be described.
[0032]
FIG. 1 is a block diagram showing an example of the configuration of the store management system according to the present embodiment.
[0033]
FIG. 2 is a diagram illustrating a specific example of a store configuration.
[0034]
Store 1 is equipment N ₁ ~ N _n , Equipment N ₁ ~ N _n Device terminal K connected to ₁ ~ K _n , Equipment terminal K ₁ ~ K _n A local server (shop server) 4 connected to the network, and a router 5 connected to the local server 4.
[0035]
For example, device N ₁ ~ N _n Are open case, refrigerated reach, frozen reach, oden warmer, drink case, fryer, commercial refrigerator, power distribution device such as power distribution board and light distribution board, air conditioner, outdoor unit, refrigeration refrigerator Etc. In addition, refrigerated walk-ins are also considered as equipment.
[0036]
In the present embodiment, a device terminal assigned to a power device is a power terminal, a device terminal assigned to an air conditioning device is an air conditioning terminal, and a device terminal assigned to another device is a facility terminal.
[0037]
Device terminal K ₁ ~ K _n Can be installed between any power equipment and the local server 4 if it is a power terminal, and can be installed between any air conditioning equipment and the local server 4 if it is an air conditioning terminal, If it is an equipment terminal, it can be installed between any equipment for equipment and the local server 4.
[0038]
Device terminal K ₁ ~ K _n Is usually device N in store 1 ₁ ~ N _n Functions as a relay for relaying communication between the local server 4 and the local server 4.
[0039]
Device terminal K ₁ ~ K _n Is the assigned device N ₁ ~ N _n Various data such as current value data periodically collected by sensors (for example, a temperature sensor, a humidity sensor, and an odor sensor) are input and output to the local server 4.
[0040]
Device terminal K ₁ ~ K _n Is the assigned device N ₁ ~ N _n Accepts and records the setting of the contents of the temporary control (fail-safe control) for the device N when the local server 4 is detected to be abnormal. ₁ ~ N _n Execute temporary control for.
[0041]
The local server 4 is a device terminal K ₁ ~ K _n Based on the data entered from the device N ₁ ~ N _n Is monitored and controlled, and data is notified to the center server 6.
[0042]
The router 5 realizes communication between the local server 4 and the outside via a network 7 such as the Internet.
[0043]
In the present embodiment, the other stores 2 and 3 have the same configuration as that of the store 1, and are not shown in FIG. However, the devices provided in the stores 2 and 3 may be different from those in the store 1.
[0044]
The service providing company 8 includes a router 9 and a center server 6.
[0045]
The router 9 realizes communication between the center server 6 and the outside via the network 7.
[0046]
The center server 6 performs monitoring, aggregation, and control based on various data such as current value data input from the local server 4. The center server 6 classifies and accumulates various data as current value data, control data, abnormality data, and the like, and is registered in the client machine 11 of the device management company 10 and the client machine 13 of the store management company 12. A data distribution service that publishes necessary data according to the level.
[0047]
For example, the center server 6 performs state list monitoring and alarm list monitoring based on the current value data input from the local server 4, and creates trend data in which the current value data is stored in time series.
[0048]
If there is no response from the local server 4 for a predetermined time, the center server 6 determines that the local server 4 is abnormal and displays the abnormality of the local server 4.
[0049]
The client machine 11 provided in the device management company 10 and the client machine 13 provided in the store management company 12 receive the data distribution service described above from the service providing company 8 via the routers 14 and 15, respectively. For example, the client machine 11 notifies the occurrence of an abnormality by an abnormality display device such as the light 16 when the abnormality occurs. Further, the client machine 11 displays the prediction result of the device failure.
[0050]
The service provider 8 notifies the administrator or the like of the abnormality via the network 7 by e-mail.
[0051]
FIG. 3 is a block diagram illustrating an example of the configuration of the local server 4.
[0052]
The local server 4 includes a terminal communication function 17, a center communication function 18, and a store management function 19.
[0053]
The terminal communication function 17 is connected to the device terminal K by a local communication driver 17a and a local interface 17b. ₁ ~ K _n To communicate with.
[0054]
The center communication function 18 includes a center communication module 18a, a router control function 18b, and a function 18c for managing the settings of the router 5 in order to communicate with the center server 6 via the router 5.
[0055]
The center communication function 18 includes an external installation function 18d for performing installation (software replacement of the local server 4) such as the center server 6, a shutdown process 18e, an energy saving parameter management (energy saving parameter change) function 18f, and terminal parameter management. (Fail-safe mode parameter change) function 18g, remote control management (execution of relay RO output of the terminal remotely) 18h, abnormality setting management (change of upper and lower limit values of equipment state such as temperature and humidity) function 18i.
[0056]
The store management function 19 includes an energy saving control function 19a and an abnormality monitoring function 19b.
[0057]
Energy saving control function 19a includes common processing 19c for energy saving control, refrigerator control 19d for energy saving control of showcase / refrigerator, dew-proof heater control 19e for reachin / walk-in door, defrost heater control 19f for showcase , Oden warmer control, AQ (air quality) control 19g for removing odors such as fryer with ventilation fan, energy saving control 19h for commercial refrigerator, PVM control 19i for controlling air conditioner based on PMV value, cooperative control 19j, etc. Run in parallel.
[0058]
The abnormality monitoring function 19b is a common process 19k for equipment abnormality monitoring, for example, equipment abnormality detection 19l such as a commercial freezer, refrigerator, freezer, air conditioner, etc. The failure prediction 19m is executed based on the transition of the current state or the transition of the current state of the air conditioner.
[0059]
Table 1 shows a list of descriptions of control executed by the store management function 19 included in the local server 4 installed in each store.
[0060]
[Table 1]

[0061]
FIG. 4 is a flowchart showing an example of processing of the store management system according to the present embodiment.
[0062]
In step A <b> 1, the device terminal K acquires the load data of the device N (not shown) to which the device terminal K is assigned and notifies the local server 4 of the load data.
[0063]
In step A2, the device terminal K receives a device control command, which is a control result for the device N, from the local server 4, and confirms the device control command.
[0064]
In step A3, the device terminal K determines whether or not it is necessary to report to the device N.
[0065]
If it is necessary to issue a report, in step A4, the device terminal K determines whether or not the purpose of the report is to control the device N.
[0066]
In the case of the control of the device N, in step A5, the device terminal K issues, for example, a control command for RO output control to the device N, and returns the process to the subsequent stage of step A3.
[0067]
On the other hand, if it is determined in step A3 that it is not necessary to issue a report, in step A6, the device terminal K has an abnormality in the local server 4 and is temporarily controlled (autonomous control by the device terminal K, fail-safe control). Determine whether or not is necessary.
[0068]
When temporary control is necessary, in step A7, the device terminal K confirms the load data.
[0069]
In step A8, the device terminal K determines whether or not it is necessary to report to the device N.
[0070]
If it is necessary to issue a report, in step A9, the device terminal K determines whether or not the purpose of the report is to control the device N.
[0071]
In the case of device control, in step A10, the device terminal K issues, for example, a control command for RO output control to the device N, and returns to the previous stage of step A1.
[0072]
In step B1, the local server 4 monitors load data from the device terminal K and performs state (status) monitoring.
[0073]
In step B2, the local server 4 notifies the center server 6 of the load data from the equipment terminal K and confirms the state of the equipment terminal K.
[0074]
In step B <b> 3, the local server 4 executes various controls such as energy saving control and notifies the device terminal K of a device control command that is a control result.
[0075]
In step B4, the local server 4 performs failure diagnosis of the device terminal K or the device N.
[0076]
In step B5, the local server 4 notifies the center server 6 of the failure diagnosis result.
[0077]
In step B6, the local server 4 determines whether or not the interface with the center server 6 is normal based on whether or not a signal is received.
[0078]
If the signal is received, in step B7, the local server 4 notifies the center server 6 of a response signal indicating that the server is normal.
[0079]
In step C1, the center server 6 performs state monitoring based on the load data.
[0080]
In step C <b> 2, the center server 6 displays a list of states of the device N, the device terminal K, and the local server 4.
[0081]
In step C3, the center server 6 collects trend data based on the result of the state monitoring.
[0082]
In step C4, the center server 6 determines whether or not the device N has an abnormality.
[0083]
If there is an abnormality in the device N, the center server 6 displays an alarm list in step C5.
[0084]
In step C6, the center server 6 determines whether or not the failure diagnosis result in the local server 4 indicates abnormality.
[0085]
If no abnormality is indicated, in step C7, the center server 6 confirms whether or not the local server 4 is normal by transmitting and receiving a signal and a response signal.
[0086]
In step C8, the center server 6 transmits a signal to the local server 4, but does not receive a response signal, and determines whether a timeout has occurred three times in succession.
[0087]
If the failure diagnosis result indicates an abnormality in step C6 or if a continuous timeout occurs three times in C8, the center server 6 displays a diagnosis result indicating a failure in step C9.
[0088]
FIG. 5 is a flowchart showing an example of processing when an abnormality occurs in the local server 4 in the store management system according to the present embodiment.
[0089]
In step D1, the center server 6 notifies the local server 4 of a signal for determining whether the local server 4 of the store 1 is normal, and performs store monitoring.
[0090]
In step D <b> 2, the center server 6 determines whether a response signal is received from the local server 4.
[0091]
If no response signal has been received, in step D3, the center server 6 determines that an abnormality has occurred in the local server 4 such as a power failure, and displays that an abnormality has occurred in step D4.
[0092]
In step E1, the local server 4 waits for a signal from the center server 6 for determining whether it is normal.
[0093]
In step E <b> 2, the local server 4 determines whether a signal is received from the center server 6.
[0094]
When receiving the signal, the local server 4 notifies the response signal to the center server 6 in step E3.
[0095]
In step F <b> 1, the local server 4 requests the device terminal K for a temporary control (for example, fail-safe control) execution flag, and acquires status data including the temporary control execution flag from the device terminal K.
[0096]
In step F2, the local server 4 determines whether the temporary control execution flag is ON.
[0097]
When the temporary control execution flag is ON, in step F3, the local server 4 adds that an abnormality has occurred in the abnormality history data.
[0098]
In step F4, the local server 4 notifies the device terminal K of an instruction to turn off the temporary control execution flag.
[0099]
In step G1, the device terminal K waits for a request signal for status data including a temporary control execution flag from the local server 4.
[0100]
In step G2, if the device terminal K does not receive a request signal from the local server 4 even after a predetermined time has elapsed, a timeout occurs.
[0101]
When a timeout occurs, in step G3, the device terminal K executes temporary control.
[0102]
In step G4, the device terminal K turns on the temporary control execution flag recorded by itself.
[0103]
In step G5, the device terminal K receives a request signal from the local server 4 and determines whether it is necessary to notify status data.
[0104]
When notifying the status data, the device terminal K notifies the local server 4 of the status data in step G6.
[0105]
In step G7, the device terminal K receives a control command from the local server 4, and determines whether or not the local server 4 has become normal.
[0106]
When the control command is received, in step G8, the device terminal K stops the temporary control and executes the process when the local server 4 is normal.
[0107]
If the control command has not been received, in step G9, the device terminal K executes temporary control.
[0108]
The local server 4 installed in each of the stores 1 to 3 has a store management function as exemplified in Table 1 above.
[0109]
The control of the store management function 19 shown in Table 1 is executed as energy saving control based on load data from the device.
[0110]
When the local server 4 is normal, all control of the device is managed by the local server 4. This eliminates the need for a control panel or system controller that is provided independently for each device in order to control the device (for example, defrost heater control in a showcase).
[0111]
The data obtained by the local server 4 is notified to the center server 6 via the router 5.
[0112]
The local server 4 constantly monitors the router address shown in FIG. 6 in consideration of a case where the address of the router 5 assigned to itself is changed.
[0113]
In FIG. 6, the local server 4 monitors the address of the router 5 in step H1, and when the address change of the router 5 occurs in step H2, the local server 4 acquires the changed address in step H3. Notify the changed address to the server.
[0114]
The center server 6 monitors the local server 4 in step I1, updates the address management file according to the changed address in step I2, and performs setting with the changed address for the local server 4 in step I3.
[0115]
In this way, by notifying the center server 6 of the changed address of the router 5, the center server 6 can perform external installation, shutdown, energy saving parameter change, terminal parameter change, remote control, abnormality in the local server 4. It is always possible to change setting values.
[0116]
When the data transmission destination is changed or added by changing the address of the center server 6 or installing a new center server 6, as shown in FIG. 7, the local server 4 monitors the address of the center server 6 in step J1. In step J2, it is determined whether the address can be changed. If the address can be changed, the local server 4 acquires a new address from the center server 6 in step J3, and performs communication settings in J4.
[0117]
The center server 6 logs in to the local server 4 in step L1, notifies the local server 4 of the new address in step L2, waits for data reception at the new address in step L3, and receives data in step L4. In L5, registration of the new address is completed.
[0118]
The external installation function 18d included in the center communication function 18 of the local server 4 is executed in a state in which communication is possible between the center server 6 and the local server 4 by the processing of FIGS.
[0119]
FIG. 8 is a flowchart illustrating an example of processing executed by the external installation function 18d.
[0120]
In step M1, the local server 4 starts executing the external installation function 18d.
[0121]
In step M2, the local server 4 determines whether external installation is necessary.
[0122]
If installation from the outside is necessary, in step M3, the local server 4 requests the center server 6 for installation, receives an execution file to be installed from the center server 6, and updates a recording device such as a ROM, for example. .
[0123]
In step M4, the local server 4 determines whether or not to execute the restart depending on whether or not a restart command has been received from the center server 6.
[0124]
When restarting, in step M5, the local server 4 executes a shutdown process and restarts.
[0125]
In step M6, the local server 4 executes file nulling and returns the process to step M1.
[0126]
In step P <b> 1, the center server 6 selects a function for executing external installation in response to an installation request from the local server 4.
[0127]
In step P2, the center server 6 determines whether or not the execution file needs to be updated.
[0128]
When the update is necessary, the center server 6 reads the execution file from the recording device in step P3, selects the execution file in step P4, and transmits the execution file in step P5.
[0129]
In step P6, the center server 6 determines whether it is necessary to restart the local server.
[0130]
If restart is necessary, the center server 6 notifies the local server 4 of a restart command in step P7.
[0131]
Equipment terminals and power terminals are designed as terminals having a certain number of standardized input points.
[0132]
The equipment terminal has the input points shown in Tables 2 and 3, for example. Temporary control is performed for the RO items marked with *.
[0133]
[Table 2]

[0134]
[Table 3]

[0135]
The power terminal has the input points shown in Tables 4 and 5, for example.
[0136]
[Table 4]

[0137]
[Table 5]

[0138]
The DI, RTD, and AI data of the equipment terminal are always transmitted to the local server 4. The power data obtained from the current and voltage of the power terminal and the product of this current and voltage are always transmitted to the local server 4.
[0139]
When an abnormality occurs in the local server 4, as shown in FIG. 5, an event occurs in which the local server 4 does not respond to the signal from the center server 6 and there is no status data request to the device terminal K. To do.
[0140]
Solenoid valve control will be described as an example of control of the store management system according to the present embodiment.
[0141]
FIG. 9 is a timing chart showing an example of the temporary control of the electromagnetic valve control. As an example, the electromagnetic valve control is energy saving control.
[0142]
The solenoid valve control shown in FIG. 9 is executed as follows by setting an upper limit value and a lower limit value of the temperature and using the upper and lower limit values.
[0143]
(1) Solenoid valve opening control
This control is performed for each group of refrigeration refrigerators in the showcase.
[0144]
(1-a) When the temperature of each showcase exceeds the set value (thermo OFF temperature), all solenoid valves are controlled to open.
[0145]
(1-b) After the above (1-a) during control, if all the solenoid valves in the same group have never been closed, the solenoid valve will be closed below the set value (thermo ON temperature). When the showcase again exceeds 50% of the set value width (a variable value, for example: (lower limit value + upper limit value) × 0.5), the solenoid valve is controlled to open.
[0146]
(1-c) The solenoid valve is not controlled to open during the refrigerating machine restart timer.
[0147]
(2) Solenoid valve closing control
This control is performed for each group of refrigeration refrigerators in the showcase.
[0148]
(2-a) When the temperature of each showcase falls below each set value (thermo ON temperature), all solenoid valves are closed.
[0149]
(2-b) When the room temperature is low, the solenoid valve of the high temperature showcase (lunch) is closed even if the above conditions are not satisfied.
[0150]
(3) Refrigeration refrigerator operation control
After outputting an open control command to one of the solenoid valves, the refrigeration refrigerator is operated and controlled.
[0151]
(4) Refrigeration refrigerator stop control
When all the solenoid valves are closed and controlled once in one cycle, the refrigerator for refrigeration is stopped. One cycle means that the refrigeration refrigerator is operated from the stopped state and is stopped again.
[0152]
For example, when a power outage or the like of the local server 4 occurs and the function is stopped, and the facility terminal continues to operate with the last command state, the showcase valve continues to open, and a huge ice inside Can cause equipment failure.
[0153]
Therefore, it is assumed that the temporary control mode (fail safe mode) is set in advance for the equipment terminal at the LON node, and the equipment terminal operates the RO in a predetermined direction when data from the local server 4 is interrupted.
[0154]
As shown in Tables 2 and 3 above, the equipment terminal to which the electromagnetic valve closing (opening) command is assigned to RO (relay contact output) is shown in FIG. / Close control is performed.
[0155]
Lower limit (L)> Temperature (T) RO output (solenoid valve open)
Upper limit (H) <temperature (T) RO output (solenoid valve closed)
During the operation of defrosting control, the solenoid valve is closed. When the defrosting control is not assigned in the own station, for example, when there is RO4 “defrosting lamp display (light-off) command defrosting control” of the node No. = 01h, the operation considering the defrosting control is performed. When the defrost control occurrence time comes, the defrost heater is operated by operating the RO to which the defrost is assigned after the solenoid valve is closed by operating the solenoid valve assigned RO in its own IOU. Turn on the lamp. At the end of the defrost control, the RO to which the defrost control is assigned is operated to turn off the defrost heater and the lamp, and then the control of the solenoid valve is resumed.
[0156]
In addition, the defrost control at the time of temporary control assigned to “Defrost lamp display (light off) command defrost control” is usually different for each open case, refrigerated reach, and frozen reach. Is done.
[0157]
FIG. 10 is a timing chart illustrating an example of temporary control for defrost control. As shown in FIG. 10, the timer is started after the RO level is changed.
[0158]
The defrost control performs an operation linked with the electromagnetic valve control, but when the electromagnetic valve control is not assigned in the own IOU, the operation considering the electromagnetic valve control is not performed. The defrosting time is always performed for a predetermined time, for example, 30 minutes. For this reason, when the start time is delayed by the operation of the solenoid valve, the defrosting time is extended accordingly.
[0159]
FIG. 11 is a diagram illustrating an example of connection between the equipment terminal and the electromagnetic valve. As shown in FIG. 11, in addition to the output port (NO / NC) 20a operated by software, the relay contact output of the equipment terminal 20 includes hardware when a terminal power supply interruption or hardware runaway occurs. A relay contact output port 20b driven by wear is provided. When normal, the thermo switch 21a for measuring the internal temperature of the device 21 (for example, a solenoid valve) is in a disconnected state, and when abnormal, the thermo switch 21a is in a connected state. When an abnormality occurs in the equipment terminal 20, the equipment terminal 20 and the device 21 are configured to be operated by machine operation.
[0160]
The power terminal has inputs shown in Tables 4 and 5, for example. The power board of the store where the power terminal is applied is a three-phase balanced single-phase three-wire power panel, a three-phase unbalanced three-phase three-wire power panel, and each load is a single-phase single-wire application. Conceivable.
[0161]
FIG. 12 is a diagram illustrating an example of a data acquisition method from the distribution board by the power terminal. FIG. 12 shows a connection example between the distribution board and the input of the power terminal. In the CT of the power terminal, the current flowing through each phase is acquired. VT is connected to R-N-T for single-phase three-wire, input from R-S-T for single-phase three-wire, and connected to RN or N-T for single-phase single-wire The
[0162]
The power terminal obtains the active power in consideration of the phase by obtaining the product value using the values of the voltage (VT) and the current (CT) as direct vector values. In the case of single-phase power, one side is not connected and the value is 0, so that there is no problem in the measurement by this method. The amount of electric power is obtained by sampling and integrating this electric power.
[0163]
In the present embodiment described above, in the store 1, the device N ₁ ~ N _n Sensor (measuring device), device terminal K ₁ ~ K _n By adding the local server 4, the store 1 can be efficiently managed and energy saving can be realized.
[0164]
Each device N ₁ ~ N _n Even if a system controller, arithmetic unit, control panel, etc. are not provided, control by software can be executed. Therefore, the degree of freedom of selection of devices that can be installed in the store 1 increases, and each device N in the store 1 is increased. ₁ ~ N _n Can be managed centrally.
[0165]
Thus, the equipment N of the store 1 ₁ ~ N _n It is easy to deal with changes, additions, and deletions of equipment by managing stores with an external device without providing any special equipment, and can reduce costs for store management and equipment introduction costs. .
[0166]
Device terminal K ₁ ~ K _n Can be applied universally to a plurality of device types, and can be applied to a plurality of device types, so that the device terminal assigned to the device before replacement can be used for the device after replacement.
[0167]
The local servers 4 of the stores 1 to 3 constantly monitor the addresses of the routers 5 of the stores 1 to 3 and notify the center server 6 of the latest addresses. Thereby, the notification of the control command from the center server 6 to the local servers 4 of the stores 1 to 3 can be surely performed.
[0168]
Device terminal K ₁ ~ K _n For example, by detecting whether communication with the local server 4 is possible, an abnormality of the local server 4 is detected, and each of the devices N registered in advance when the abnormality occurs is detected. ₁ ~ N _n Execute temporary control for. As a result, even if an abnormality occurs in the local server 4, the device terminal K ₁ ~ K _n As a result, temporary control is executed individually, fail-safe control is executed, and the reliability of the control is improved.
[0169]
Device terminal K ₁ ~ K _n Is equipped with a hardware output mechanism that is different from the software output when an abnormality occurs in itself, and the relay output can be safely switched by the hardware output when the abnormality occurs.
[0170]
Note that the local server 4 may execute a control that puts a value to be controlled between a preset upper limit value and lower limit value. On the other hand, if the value to be controlled is temperature and the controlled device is a refrigerator or refrigerator, the intermediate value between the upper limit value and the lower limit value is used instead of the upper limit value, and the control target value is between the intermediate value and the lower limit value. Control for keeping the value of may be executed. Thereby, the stop time of a refrigerator or refrigerator can be kept long, and energy saving control can be performed.
[0171]
【The invention's effect】
In the present invention described in detail above, centralized management of each device installed in a store can be realized easily and at low cost, and efficient operation of the device can be performed by managing the status of the entire store.
[Brief description of the drawings]
FIG. 1 is a block diagram showing an example of a configuration of a store management system according to an embodiment of the present invention.
FIG. 2 is a diagram showing a specific example of a store configuration.
FIG. 3 is a block diagram showing an example of the configuration of a local server.
FIG. 4 is a flowchart showing an example of processing of the store management system according to the embodiment.
FIG. 5 is a flowchart showing an example of processing when an abnormality occurs in the local server in the store management system according to the embodiment;
FIG. 6 is a flowchart illustrating an example of a router address monitoring process.
FIG. 7 is a flowchart illustrating an example of address change processing of the center server.
FIG. 8 is a flowchart showing an example of processing of an external installation function.
FIG. 9 is a timing chart showing an example of extraordinary control of electromagnetic valve control.
FIG. 10 is a timing chart showing an example of temporary control for defrost control.
FIG. 11 is a diagram showing an example of connection between a facility terminal and a solenoid valve.
FIG. 12 is a diagram showing an example of a method for acquiring data from a distribution board
[Explanation of symbols]
1-3 ... store, 4 ... local server, 5, 9, 14, 15 ... router, 6 ... center server, 7 ... network, N ₁ ~ N _n ... equipment, K ₁ ~ K _n ... Device terminal

Claims (9)

A store server that monitors and controls the equipment in the store;
It can be assigned to any of a plurality of types of the equipment , records the contents of the temporary control for the assigned equipment in charge, and relays data between the responsible equipment and the store server in normal times , store management system and a device terminal that executes fault the temporary control to the device in charge when detecting the store server. A center server that monitors and controls multiple stores;
A plurality of store servers that can communicate with the center server via a network, are assigned to each of the plurality of stores, and monitor and control the devices of the store to which the center is assigned;
It can be assigned to any of a plurality of types of the device , records the contents of the temporary control for the assigned device assigned to itself, and in normal times, between the assigned device and the store server of the store to which the assigned device belongs A store management system comprising a plurality of device terminals that relay data and detect an abnormality in a store server of a store to which the responsible device belongs, and execute the temporary control on the responsible device. In the store management system according to claim 2,
The plurality of store servers monitor an address of a router allocated to the center server to communicate with the center server, and notify the center server of a current address;
The store management system, wherein the center server transmits a control command to the plurality of store servers using addresses notified from the plurality of store servers. In claims 1 to store management system of any one of claims 3,
The device switches the operation content based on an external control command,
The store management system, wherein the device terminal notifies the responsible device of a control command received from the store server or a control command obtained by the temporary control. In claims 1 to store management system of any one of claims 4,
The store management system, wherein the device terminal executes the temporary control when communication with the store server belonging to the same store as the device terminal is impossible for a predetermined period. In store management system according to any one of claims 1 to 5,
The device terminal includes a first output unit that performs output based on the operation of software during its own normal time, and a second output unit that performs output based on the operation of hardware when the device terminal is abnormal. A featured store management system. In claims 1 to store management system of any one of claims 6,
The store server executes temperature management control of the device, and sends a temperature management command obtained as a result of the temperature management control to the device via the device terminal,
The store management system , wherein the device adjusts the temperature based on the temperature management command. In claims 1 to store management system of any one of claims 7,
The device is a refrigerator or refrigerator,
The store server stores the temperature value measured from the device between the intermediate value and the lower limit value based on the intermediate value between the upper limit value and the lower limit value of the temperature of the device and the lower limit value. A store management system that performs waste suppression control. In claims 1 to store management system of any one of claims 6,
The responsible device is a power device belonging to the store,
The device terminal measures the voltage, current, active power, and electric energy of any of single-phase three-wire, three-phase three-wire, and single-phase single wire for the device in charge , and notifies the store server belonging to the store A store management system characterized by that.

Images