JP3973445B2

JP3973445B2 - Elevator remote monitoring device

Info

Publication number: JP3973445B2
Application number: JP2002040653A
Authority: JP
Inventors: 一雄徳井
Original assignee: Mitsubishi Electric Building Techno Service Co Ltd
Current assignee: Mitsubishi Electric Building Solutions Corp
Priority date: 2002-02-18
Filing date: 2002-02-18
Publication date: 2007-09-12
Anticipated expiration: 2022-02-18
Also published as: JP2003238040A

Description

【０００１】
【発明の属する技術分野】
この発明は、エレベーターの異常・故障を遠隔場所で監視する装置に関するものである。
【０００２】
【従来の技術】
従来、エレベーターのかご内に監視カメラを設置し、乗客の閉込め故障を検出する装置が提案されている。例えば、特開２０００−２３８９６８号公報には、かご内監視カメラによりかご内を撮像し、その画像のうち、所定領域の画像から乗客の有無を検出し、また上記画像のうち、他の所定の領域の画像から、かごの戸の開閉を検出し、乗客と戸閉が共に検出された状態が一定時間継続したときに閉込めと判定して、監視センタへ通報するようにすることが開示されている。
【０００３】
【発明が解決しようとする課題】
上記のような従来のエレベーターの遠隔監視装置では、かご内画像から乗客の閉込めを判定して通報するようにしているため、閉込めが発生したことを監視センタで知ることはできるが、閉込め発生箇所（エレベーター運転階）を知ることはできない。閉込め通報はあるが、現地に行ってしか発生階を知ることができない。戸開閉不良、使用不能などの異常・故障を監視して、遠隔監視センタの機能を高めるようにすることができないなどの問題点がある。
【０００４】
この発明は上記問題点を解消するためになされたもので、異常・故障発生時に発生かごの位置を知ることができ、かつ今後の異常発生の予知ができるようにしたエレベーターの遠隔監視装置を提供することを目的とする。
【０００５】
【課題を解決するための手段】
この発明の第１発明に係るエレベーターの遠隔監視装置は、かご内の状況を撮像する第１カメラと、上記かご内に設置された位置表示器が表示する階床数字を撮像する第２カメラと、上記かごの走行状態を検出する走行検出器とを設け、上記第１カメラ及び走行検出器の各出力に基づいて上記かごの異常状態を検出し、上記第２カメラの出力に基づいて上記階床数字を上記かごの異常状態の該当階床として検出する制御部と、この制御部から出力される上記かごの異常状態及び該当階床を監視センタへ通報する通信装置とを備えたものである。
【０００６】
また第２発明に係るエレベーターの遠隔監視装置は、かご内の状況を撮像する第１カメラと、上記かご内に設置された位置表示器が表示する階床数字を撮像する第２カメラと、上記かごの走行状態を検出する走行検出器とを設け、上記第１カメラの出力を画像処理して上記かご内の乗客の有無を検出する乗客検出手段と、上記第１カメラの出力を画像処理して上記かごに設けられた戸の開閉状態を検出する戸開閉検出手段と、上記第２カメラの出力を画像処理して上記位置表示器の階床数字を検出する数字検出手段と、上記乗客検出手段の出力及び上記走行検出器の出力から上記乗客の閉込めを検出し、上記数字検出手段の出力から上記階床数字を上記乗客の閉込めの該当階床として検出する閉込め故障検出手段と、上記戸開閉検出手段の出力及び上記走行検出器の出力から上記戸の開閉異常を検出し、上記数字検出手段の出力から上記階床数字を上記戸の開閉異常の該当階床として検出する戸開閉異常検出手段と、上記閉込め故障検出手段から出力される上記乗客の閉込め及び該当階床、並びに上記戸開閉異常検出手段から出力される上記戸の開閉異常及び該当階床を監視センタへ通報する通信装置とを備えたものである。
【０００７】
また、第３発明に係るエレベーターの遠隔監視装置は、第２発明のものにおいて、戸開閉異常検出手段は、第１カメラの出力からかごの戸が全閉していることが検出され、かつかごが走行した後停止した状態で第１の所定時間経過しても戸開不能の場合、第２カメラの出力が示すかご停止階における戸開閉不良を記録するようにしたものである。
【０００８】
また、第４発明に係るエレベーターの遠隔監視装置は、第２発明のものにおいて、閉込め故障検出手段は、第１カメラの出力からかご内に乗客が乗車しており、かつかごの戸が全閉していることが検出され、かつかごが走行した後停止した状態で第２の所定時間経過しても戸開不能の場合、第２カメラの出力が示すかご停止階における走行後閉込めを検出するようにしたものである。
【０００９】
また、第５発明に係るエレベーターの遠隔監視装置は、第２発明のものにおいて、閉込め故障検出手段は、第１カメラの出力からかご内に乗客が乗車しており、かつかごの戸が全閉していることが検出され、かつかごが停止した状態で第２の所定時間経過しても戸開不能の場合、第２カメラの出力が示すかご停止階における走行せず閉込めを検出するようにしたものである。
【００１０】
また、第６発明に係るエレベーターの遠隔監視装置は、第１又は第２発明のものにおいて、第１カメラの出力からかご内に乗客が不在であり、かつかごの戸が全閉していることが検出された状態で第３の所定時間経過してもかごが走行しない場合、又は上記第１カメラの出力から上記かごの戸が全開していることが検出され、かつ上記かごが停止した状態で第３の所定時間経過しても上記かごが走行しない場合、それぞれ第２カメラの出力が示す上記かご停止階における使用不能を検出する使用不能検出手段を設けたものである。
【００１１】
【発明の実施の形態】
実施の形態１．
図１〜図９はこの発明の第１〜第６発明の一実施の形態を示す図で、図１はブロック線図、図２は図１の一部詳細ブロック線図、図３は正常動作タイムチャート、図４は走行後閉込め動作タイムチャート、図５は走行せず閉込め動作タイムチャート、図６は戸開閉不良動作タイムチャート、図７は走行検出動作フローチャート、図８は位置表示器数字検出動作フローチャート、図９は異常検出動作論理回路図であり、図中同一符号は同一部分を示す。
【００１２】
図１において、１はかごで、かご１内には位置表示器２、乗客３及びかご戸（図示しない）の開閉状態を撮像する室内監視カメラ（以下第１カメラという）と、位置表示器２が表示する階床数字を撮像する位置表示器監視カメラ（以下第２カメラという）５が設置されている。６はかご上機器で、第１カメラ４に接続され乗客３の画像及び戸開閉画像を処理するかご内画像処理部７及び第２カメラ５に接続され位置表示器２の階床数字画像を処理する位置表示器画像処理部８を有している。
【００１３】
また、９はかご１の走行を検出する加速度計（以下走行検出器という）、１０は上記各処理部７，８及び走行検出器９に接続され、それらの情報を処理し、異常・故障を判断し、その結果を出力する制御部、１１は機械室に設置されて制御部１０に接続され、入力された情報を通信装置１２を経由して遠隔の監視センタ１３へ通報するかご制御盤である。
【００１４】
図２において、かご内画像処理部７には、第１カメラ４からの画像を、例えば特開２０００−２３８９６８号公報に示されたように２値化処理する画像処理手段１４、その出力から乗客３の有無を検出する乗客検出手段１５、検出された乗客の有無を記録する画像記録手段１６及び画像処理手段１４の出力から戸開閉状態を検出する戸開閉検出手段１７を有している。
【００１５】
位置表示器画像処理部８には、第２カメラ５からの画像を処理する画像処理手段１８、その出力から位置表示器２の階床数字を検出する数字検出手段１９及び検出された数字を一時的に記憶する一時記憶手段２０を有している。
【００１６】
制御部１０には、走行検出器９の出力からかご１の走行状態を検出する走行検出手段２１を有し、乗客検出手段１５、一時記憶手段２０及び走行検出手段２１に接続され乗客１の閉込めを検出する閉込め故障検出手段２２と、戸開閉検出手段１７、一時記憶手段２０及び走行検出手段２１に接続されかご戸の開閉異常を検出する戸開閉異常検出手段２３と、これらの検出手段２２，２３に接続され閉込め異常及び戸開閉異常を検出する異常・故障記憶手段２４と、上記検出手段２２，２３で検出された閉込め異常及び戸開閉異常を監視センタ１３へ通報する信号伝送部２５とを有している。
【００１７】
次に、乗客３の動作、第１カメラ４による乗客検出状態と実際の戸開閉状態及び走行検出器９の出力並びに第２カメラ５によって撮像された階床の関係を説明する。
(1) 正常動作（図３）
１階に停止中のかご１に乗客３が乗車して３階で降車した場合。
時刻ｔ₁で１階の乗場呼びが発生すると、時刻ｔ₂でかご１は戸開する。時刻ｔ₃で乗客３が乗り込んで行先階（例えば３階）の呼びを登録すると、時刻ｔ₄でかご１は戸閉して走行を開始する。かご１は加速後一定速度で走行し、２階を通過する。かご１が３階に近接すると減速して３階に停止して戸開する。そして、乗客３が降車し、かご１は戸閉する。
【００１８】
(2) 乗客が乗車して走行後閉込め（図４）
時刻ｔ₁〜ｔ₄での各部の動作は図３と同様である。かご１は３階へ走行して停止し、一定時間Ｔ１経過しても戸開せず、乗客３はかご１内に閉込め状態となる。
(3) 乗客は乗車したが走行せず閉込め（図５）
時刻ｔ₁〜ｔ₃までの各部の動作は図３と同様である。時刻ｔ₄でかご１は戸閉するが、一定時間Ｔ２経過してもかご１は走行せず、戸開もせず、乗客３はかご１内に閉込め状態となる。閉込め状態になると、通常乗客は戸開ボタンを押すが戸開しない状態である。
【００１９】
(4) 戸開閉不良（図６）
かご１が１階から走行し、時刻ｔ₄で２階に停止したが、例えば敷居溝に小石等があって戸は半開及び全閉を繰り返すが全開しなかったとする。この状態が一定時間継続したとき、他階に（ここでは４階）に呼び（行先呼び又は乗場呼び）があれば、時刻ｔ₅で走行を開始し、時刻ｔ₆で４階に停止して戸開する。この場合は２階に対して戸開閉不良が記録される。なお、時刻ｔ₅で他階に呼びがないときは、２階に停止する。
【００２０】
次に、走行検出手段２１の動作を図７により説明する。ただし、走行検出器９は加速度計の場合について説明する。
かご１が上昇走行を開始すると、ステップＳ１で加速度計９の出力が正方向であるかを判定する。正方向であればステップＳ２で加速度計９の出力が負方向になるのを待つ。加速度計９の出力が負方向になると、ステップＳ３で「走行後停止」が出力される。すなわち、加速度計９が加速方向の出力を発してから一定時間後減速方向の出力を発すると「走行後停止」となる。
【００２１】
ステップＳ１で加速度計９の出力がないと判定されると、ステップＳ４へ進んで「走行せず停止」が出力される。すなわち、かご１は走行せず停止出力が維持される。
かご１が下降走行の場合には、ステップＳ１の出力の正方向を負方向に、ステップＳ２の出力の負方向を正方向に読み換えて処理する。すなわち、下降方向では加速度出力は負方向であるが、減速時では加速度出力は正方向となるため、同様に「走行後停止」が出力される。
【００２２】
次に、数字検出手段１９の動作を図８により説明する。
通常の位置表示器２は、かご１の停止階を明確にするために、他の階床よりも輝度を上げて表示される。
ステップＳ１１で第２カメラ５の画像を２値化する。ステップＳ１２で上記画像の輝度の高い部分を切り取る。ステップＳ１３であらかじめデータとして記憶している数字データと照合し、ステップＳ１４で数字を特定する。そして、特定された数字をステップＳ１５で一時記憶する。
【００２３】
次に、各異常及び故障のモードの検出動作を図４〜図５及び図９を参照して説明する。なお、図中３１〜３４はＡＮＤ回路、３５はＯＲ回路、３６，３７は時間Ｔ１を設定するタイマ、３８，３９は時間Ｔ２を設定するタイマ、４０，４１は時間Ｔ３を設定するタイマ、４２〜４７はＡＮＤ回路である。なお、Ｔ１＜Ｔ２、Ｔ１＞Ｔ３とする。
【００２４】
▲１▼ 走行後閉込めモード（図４及び図９）
このモードは、例えばかご１に乗客３が乗り込んで行先階の呼びを登録し、かご１が走行して行先階に停止した場合に発生する。このとき、乗客３が複数の場合には、行先階は複数になることもあり、また乗場呼びが登録された階に停止することもある。
かご１の走行中は「乗客あり」信号及び「全閉」信号が出力されている。かご１が停止すると、「走行後停止」信号が出力され、ＡＮＤ回路３１の出力は「Ｈ」となり、タイマ３６，３８は時間のカウントを開始する。
【００２５】
このとき、戸が開かず、全閉状態が維持されたとする。これで、乗客３は第１カメラ４により検出された状態で一定時間Ｔ１が経過すると、タイマ３６の出力は「Ｈ」となる。このとき、この階で戸開ができなくても、走行機能が正常で、他階呼びがある場合は、タイマ３６の出力が「Ｈ」となった後に他階呼びに応答して、かご１は他階へ走行する。
【００２６】
走行機能が故障していると、タイマ３６の出力が「Ｈ」となって、タイマ３８がリセットされてから一定時間Ｔ２が経過すると、タイマ３８の出力は「Ｈ」となり、「走行後閉込め」信号に、位置表示器数字検出処理によって検出された「階床名」信号が付加されて出力される。なお、時間Ｔ１は秒単位に、時間Ｔ２は分単位に設定される。
【００２７】
▲２▼ 走行せず閉込めモード（図５及び図９）
このモードは、例えばかご１に乗客３が乗り込んで行先階の呼びを登録したが、走行開始せずに停止状態を維持した場合に発生する。
「乗客あり」信号、「全閉」信号及び「走行せず停止」信号が出力されると、ＡＮＤ回路３２の出力は「Ｈ」となり、タイマ３９は時間のカウントを開始する。一定時間Ｔ２が経過すると、タイマ３９の出力は「Ｈ」となり、ＡＮＤ回路４４の出力は「Ｈ」となり、「走行せず閉込め」信号に「階床名」信号が付加されて出力される。
【００２８】
▲３▼ 戸開閉不良モード（図６及び図９）
▲３▼−１かご乗客あり
このモードは、モード▲１▼において、他階呼びに応答して走行した場合に発生する。すなわち、何らかの異常（例えば、乗場敷居に小石等があった場合）により、停止階の戸が開かず、乗客の降車又は待客の乗車が不能の場合に発生する。
モード▲１▼でかご１が停止し、ＡＮＤ回路３１の出力が「Ｈ」となり、タイマ３６の設定時間Ｔ１が経過すると、ＡＮＤ回路４３の出力は「Ｈ」となり、「戸開閉不良」信号に「階床名」信号が付加されて出力される。同時にタイマＴ２がリセットされる。
【００２９】
この場合、次にこの階に停止したとき、戸が正常に開き、走行が可能となることもあるので、直ちに監視センタに通報せず、同一異常が一定回数発生した場合に監視センタに通報するようにしてもよい。
【００３０】
▲３▼−２かご乗客なし
このモードは、例えばかご１の停止階以外の階で乗客呼びが発生し、かご１がこの呼びに応答して走行したが、何らかの異常（例えば乗場敷居に小石等）があって停止階の戸が開かず、乗場待客が乗り込めないときに発生する。
「乗客なし」信号、「走行後停止」信号及び「全閉」信号が出力されると、ＡＮＤ回路３３の出力は「Ｈ」となり、タイマ３７は時間のカウントを開始する。
【００３１】
停止階では戸開不能のため乗客が乗せられず、戸閉のまま一定時間Ｔ１が経過すると、タイマ３７の出力が「Ｈ」となり、ＡＮＤ回路４６の出力が「Ｈ」となる。このとき、走行機能が正常で、他階呼びがあれば、かごは他階へ走行する。これで、「戸開閉不良」信号に「階床名」信号が付加されて出力され、異常・故障記憶手段２４に記録される。監視センタへの通報条件は、▲３▼−１の条件と同じでもよいし、別に設定してもよい。
【００３２】
▲４▼ 使用不能モード（図９）
▲４▼−１空かご呼寄せ戸開不能
▲３▼−２のモードで、タイマ３７の出力が「Ｈ」になると、タイマ４０がリセットされ、一定時間Ｔ３が経過すると、タイマ４０の出力が「Ｈ」となり、ＡＮＤ回路４５の出力が「Ｈ」となる。これで、「使用不能」信号に「階床名」信号が付加されて出力され、監視センタに通報される。なお、一定時刻Ｔ３は分単位に設定される。
【００３３】
▲４▼−２かご走行不能
通常のエレベーターは、運行サービス後戸を閉じて待機する。ここで、「全開」信号が出力されており、「走行後停止」信号又は「走行せず停止」信号が出力されると、ＯＲ回路３５の出力は「Ｈ」となり、ＡＮＤ回路３４の出力は「Ｈ」となる。これで、タイマ４１は時間のカウントを開始し、一定時間Ｔ３が経過すると、タイマ４１の出力は「Ｈ」となり、ＡＮＤ回路４７の出力が「Ｈ」となる。これで、「使用不能」信号に「階床名」信号が付加されて出力され、監視センタに通報される。
【００３４】
このようにして、かご１内に設置された第１及び第２カメラ４，５並びにかご１の上に設置された走行検出器９だけで、かご内操作盤に追加配線することなく、乗客閉込め時に該当階床が監視センタに通報されるため、保守員が現地に到着する前に、容易に該当階床を把握でき、乗客の救出が可能となる。また、従来の監視カメラでは検出不能なエレベーターの異常・故障のうち、発生割合の多い戸開閉不良が検出できるため、以後の故障予知ができ、遠隔監視サービスの向上が可能となる。
【００３５】
実施の形態２．
実施の形態１では、走行検出器９としてかご１上の加速度計を用いるものとしたが、これを次のように構成する。
(1) かご１に回転計を設置し、これをガイドレールに接触させ、回転計が回転していれば走行中と検出する。
(2) かご１に磁気検出器を設置し、これをガイドレールに非接触状態で対向させて磁気変化を検出する。すなわち、ガイドレールは鉄製であるので、磁気変化があればかご１が走行中と検出する。
【００３６】
(3) かご１上に別のカメラを設置し、映像変化からかご１の走行を検出する。すなわち、昇降路壁面の画像の濃淡変化によって、かご１の走行を検出する。
(4) かご１にレーザ光等を用いた距離計を設置し、上記レーザ光等を昇降路天井、ピット等に向けた場合の距離計の出力変化により、かご１の走行を検出する。
【００３７】
実施の形態３．
実施の形態１では、位置表示器２の数字検出用に第２カメラ５を設置したが、かご内操作盤上部に階床表示器があり、第１カメラ４の撮像範囲にある場合は、画像処理の際、表示箇所が特定されるので、特定範囲の画像から数字を検出するようにしてもよい。
【００３８】
【発明の効果】
以上説明したとおり、この発明の第１発明では、かご内の状況を撮像する第１カメラ及び走行検出器の各出力に基づいてかごの異常状態を検出し、かご内位置表示器が表示する階床数字を撮像する第２カメラの出力に基づいて階床数字をかごの異常状態の該当階床として検出して、監視センタへ通報するようにしたので、かご内操作盤に追加配線することなく、異常・故障の発生時に、保守員が現地に到着する前にその状況及び該当階床を把握することができる。
【００３９】
第２発明では、かご内の状況を撮像する第１カメラの出力からかご内乗客の有無及び戸の開閉状況を検出し、かご内位置表示器が表示する階床数字を撮像する第２カメラの出力から位置表示器の階床数字を検出し、乗客の有無及びかごの走行状態から乗客の閉込めを検出し、階床数字を乗客の閉込めの該当階床として検出し、また、戸の開閉状態及びかごの走行状態から戸の開閉異常を検出し、階床数字を戸の開閉異常の該当階床として検出して、これらを監視センタへ通報するようにしたものである。
【００４０】
これにより、かご内操作盤に追加配線することなく、乗客閉込め時に、保守員が現地に到着する前に、該当階床を把握して乗客の救出を容易にすることができる。また、戸開閉不良の発生階床が検出されるので、以後の故障予知ができ、遠隔監視サービスの向上を図ることができる。
【００４１】
また、第３発明では、かごの戸が全閉しており、かごが走行した後停止した状態で第１の所定時間経過しても戸開不能の場合、かご停止階における戸開閉不良を記録するようにしたので、戸開閉不良発生階を容易に把握することができる。
【００４２】
また、第４発明では、かごの戸が全閉状態で乗客が乗車しており、かつかごが走行した後停止した状態で第２の所定時間経過しても戸開不能の場合、かご停止階における走行後閉込めを検出するようにしたので、閉込め発生階を容易に把握することができる。
【００４３】
また、第５発明では、かごの戸が全閉状態で乗客が乗車しており、かつかごが停止した状態で第２の所定時間経過しても戸開不能の場合、かご停止階における走行せず閉込めを検出するようにしたので、閉込め発生階を容易に把握することができる。
【００４４】
また、第６発明では、かご内乗客が不在で、かつかごの戸が全閉している状態で第３の所定時間経過してもかごが走行しない場合、又はかごの戸が全開し、かつかごが停止した状態で第３の所定時間経過してもかごが走行しない場合、かご停止階における使用不能を検出するようにしたので、使用不能発生階を容易に把握することができる。
【図面の簡単な説明】
【図１】この発明の実施の形態１を示すブロック線図。
【図２】この発明の実施の形態１を示す図で、図１の一部詳細ブロック線図。
【図３】この発明の実施の形態１を示す正常動作タイムチャート。
【図４】この発明の実施の形態１を示す走行後閉込め動作タイムチャート。
【図５】この発明の実施の形態１を示す走行せず閉込め動作タイムチャート。
【図６】この発明の実施の形態１を示す戸開閉不良動作タイムチャート。
【図７】この発明の実施の形態１を示す走行検出動作フローチャート。
【図８】この発明の実施の形態１を示す位置表示器数字検出動作フローチャート。
【図９】この発明の実施の形態１を示す異常検出論理回路図。
【符号の説明】
１かご、２位置表示器、３乗客、４第１カメラ（室内監視カメラ）、５第２カメラ（位置表示器監視カメラ）、６かご上機器、７かご内画像処理部、８位置表示器画像処理部、９走行検出器（加速度計）、１０制御部、１１かご制御盤、１２通信装置、１３監視センタ、１４画像処理手段、１５乗客検出手段、１６画像記録手段、１７戸開閉検出手段、１８画像処理手段、１９数字検出手段、２０一時記憶手段、２１走行検出手段、２２閉込め故障検出手段、２３戸開閉異常検出手段、２４異常・故障記憶手段、３１〜３４ＡＮＤ回路、３５ＯＲ回路、３６〜４１タイマ、４２〜４７ＡＮＤ回路。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an apparatus for monitoring an abnormality / failure of an elevator at a remote location.
[0002]
[Prior art]
Conventionally, a device has been proposed in which a surveillance camera is installed in an elevator car to detect a passenger confinement failure. For example, in Japanese Patent Laid-Open No. 2000-238968, the inside of a car is imaged by an in-car monitoring camera, and the presence / absence of a passenger is detected from an image in a predetermined area of the image. It is disclosed to detect the opening / closing of a car door from the image of the area, determine that the car is closed when both the passenger and door closing states are detected for a certain period of time, and report to the monitoring center. ing.
[0003]
[Problems to be solved by the invention]
In the conventional elevator remote monitoring device as described above, it is possible to determine at the monitoring center that the confinement has occurred because the passenger image is judged and reported from the in-car image. It is not possible to know the location where the clogging occurred (elevator operation floor). There is a report of confinement, but you can only know the floor where it occurred by going to the site. There is a problem that it is impossible to improve the function of the remote monitoring center by monitoring abnormalities / failures such as door opening / closing failure and inability to use.
[0004]
The present invention has been made to solve the above problems, and provides an elevator remote monitoring device that can know the position of a car when an abnormality or failure occurs and can predict the occurrence of an abnormality in the future. The purpose is to do.
[0005]
[Means for Solving the Problems]
According to a first aspect of the present invention, there is provided a remote monitoring device for an elevator, a first camera for imaging a situation in a car, and a second camera for imaging a floor number displayed by a position indicator installed in the car. , provided a travel detector for detecting a running condition of the car, to detect the abnormal state of the car based on the outputs of the first camera及Bihashi line detector, based on an output of said second camera A control unit that detects the floor number as the corresponding floor of the abnormal state of the car, and a communication device that reports the abnormal state of the car and the corresponding floor that is output from the control unit to the monitoring center It is.
[0006]
According to a second aspect of the present invention, there is provided a remote monitoring apparatus for an elevator, a first camera for imaging a situation in a car, a second camera for imaging a floor number displayed by a position indicator installed in the car, and A travel detector for detecting the traveling state of the car, image processing the output of the first camera to detect the presence or absence of a passenger in the car, and image processing of the output of the first camera Door opening / closing detection means for detecting the open / closed state of the door provided in the car, number detection means for detecting the floor number of the position indicator by image processing the output of the second camera, and passenger detection detecting the confinement from the output of the output Chikara及 beauty the running detector means of the passenger detected by confinement failure detection from the output of said number detection means said floor number as appropriate floor of confinement of the passenger and means, out of the door opening and closing detection means 及 beauty detecting the opening and closing abnormality of the door from the output of the running detector, a door opening and closing abnormality detection means for detecting the floor number from the output of said numeral detecting means as a true floor of the door opening and closing abnormality, the A communication device for reporting the passenger's confinement and corresponding floor output from the confinement failure detection means, and the door opening / closing abnormality and corresponding floor output from the door opening / closing abnormality detection means to the monitoring center. It is a thing.
[0007]
According to a third aspect of the remote monitoring device for an elevator according to the third aspect of the invention, the door opening / closing abnormality detecting means detects that the car door is fully closed from the output of the first camera, and the car. When the door cannot be opened even after the first predetermined time has passed after the vehicle has traveled, the door opening / closing failure at the car stop floor indicated by the output of the second camera is recorded.
[0008]
According to a fourth aspect of the present invention, there is provided a remote monitoring apparatus for an elevator according to the second aspect, wherein the confinement failure detecting means includes a passenger in the car from the output of the first camera, and all the doors of the car. If it is detected that the car is closed and the car has stopped after running, and the door cannot be opened even after the second predetermined time has elapsed, the car stops at the car stop floor indicated by the output of the second camera. It is intended to be detected.
[0009]
According to a fifth aspect of the present invention, there is provided a remote monitoring apparatus for an elevator according to the second aspect, wherein the confinement failure detecting means is configured such that a passenger is in the car from the output of the first camera and all the doors of the car are located. If it is detected that the door is closed and the door cannot be opened even after the second predetermined time has elapsed with the car stopped, detection of confinement is made without running on the car stop floor indicated by the output of the second camera. It is what I did.
[0010]
In addition, the elevator remote monitoring device according to the sixth invention is the one according to the first or second invention, wherein no passenger is present in the car from the output of the first camera, and the car door is fully closed. When the car does not run even after the third predetermined time has passed in the state where the car is detected, or the car door is detected from the output of the first camera and the car is stopped. In the case where the car does not run even after the third predetermined time has elapsed, an unusable detecting means for detecting unusability at the car stop floor indicated by the output of the second camera is provided.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
1 to 9 are diagrams showing an embodiment of the first to sixth inventions of the present invention. FIG. 1 is a block diagram, FIG. 2 is a partial detailed block diagram of FIG. 1, and FIG. 3 is a normal operation. FIG. 4 is a time chart for confining operation after traveling, FIG. 5 is a time chart for confining operation without traveling, FIG. 6 is a time chart for door opening / closing failure operation, FIG. 7 is a flowchart for traveling detection operation, and FIG. The numeral detection operation flowchart and FIG. 9 are logic diagrams of abnormality detection operation, where the same reference numerals denote the same parts.
[0012]
In FIG. 1, reference numeral 1 denotes a car. Inside the car 1 is a position indicator 2, an indoor surveillance camera (hereinafter referred to as a first camera) that images the open / closed state of passengers 3 and car doors (not shown), and a position indicator 2. A position indicator monitoring camera (hereinafter referred to as a second camera) 5 that captures the floor numbers displayed by is installed. Reference numeral 6 denotes a car-mounted device, which is connected to the first camera 4 and processes an image of the passenger 3 and a door opening / closing image, and is connected to the in-car image processing unit 7 and the second camera 5 to process the floor number image of the position indicator 2. A position indicator image processing unit 8 is provided.
[0013]
Further, 9 is an accelerometer for detecting the traveling of the car 1 (hereinafter referred to as a traveling detector), and 10 is connected to each of the processing units 7 and 8 and the traveling detector 9 to process those information, and to detect abnormalities / failures. A control unit 11 for determining and outputting the result is installed in the machine room and connected to the control unit 10, and is a car control panel for reporting the input information to the remote monitoring center 13 via the communication device 12. is there.
[0014]
In FIG. 2, the in-car image processing unit 7 includes an image processing means 14 for binarizing the image from the first camera 4 as disclosed in, for example, Japanese Patent Laid-Open No. 2000-238968, and passengers from the output. 3 includes passenger detection means 15 for detecting presence / absence of three, image recording means 16 for recording the presence / absence of detected passengers, and door opening / closing detection means 17 for detecting a door open / closed state from the output of the image processing means 14.
[0015]
In the position indicator image processing unit 8, image processing means 18 for processing the image from the second camera 5, number detection means 19 for detecting the floor number of the position indicator 2 from the output thereof, and the detected number are temporarily stored. Temporary storage means 20 is stored.
[0016]
The control unit 10 includes a travel detection unit 21 that detects the travel state of the car 1 from the output of the travel detector 9, and is connected to the passenger detection unit 15, the temporary storage unit 20, and the travel detection unit 21 to close the passenger 1. A confinement failure detecting means 22 for detecting a confinement, a door opening / closing detecting means 17, a temporary storage means 20, a door detecting abnormality detecting means 23 for detecting an opening / closing abnormality of a car door connected to the travel detecting means 21, and these detecting means An abnormality / fault storage means 24 connected to the terminals 22 and 23 for detecting a confinement abnormality and a door opening / closing abnormality, and a signal transmission for reporting the confinement abnormality and the door opening / closing abnormality detected by the detection means 22 and 23 to the monitoring center 13. Part 25.
[0017]
Next, the relationship between the operation of the passenger 3, the passenger detection state by the first camera 4 and the actual door open / close state, the output of the travel detector 9, and the floor imaged by the second camera 5 will be described.
(1) Normal operation (Fig. 3)
When passenger 3 gets on car 1 stopped on the first floor and gets off on the third floor.
When the first floor hall call is generated at time t ₁ , the car 1 is opened at time t ₂ . When registering a call of destination floor (for example 3F) on board passenger 3 at time t _3, time t ₄ Dekago 1 starts traveling closed door. The car 1 runs at a constant speed after acceleration and passes through the second floor. When the car 1 approaches the third floor, it decelerates and stops at the third floor and opens. Then, the passenger 3 gets off and the car 1 is closed.
[0018]
(2) Passenger boarding and confining after driving (Figure 4)
The operation of each part at times t _{1 to} t ₄ is the same as that in FIG. The car 1 travels to the third floor and stops. Even if the predetermined time T1 elapses, the car 1 does not open, and the passenger 3 enters the car 1 in a confined state.
(3) Passengers boarded but were not able to travel and confined (Figure 5)
The operation of each unit until the time t ₁ ~t ₃ is similar to FIG. At time t _{4, the} car 1 is closed, but the car 1 does not run and the door is not opened even after the lapse of a certain time T 2, and the passenger 3 is in a closed state in the car 1. When in the closed state, the passenger normally presses the door open button but does not open the door.
[0019]
(4) Door opening / closing failure (Figure 6)
Car 1 travels from the first floor has been stopped on the second floor at time t _4, for example door if there is pebbles etc. sill groove and did not fully opened is repeated half open and fully closed. When this state has continued for a predetermined time, if there is another floor (here the fourth floor) is referred to (called destination call or a hall), starts running at time t _5, is stopped on the fourth floor at time t ₆ Open the door. In this case, a door opening / closing failure is recorded for the second floor. It should be noted that, when there is no call to another floor at the time t ₅ is stopped on the second floor.
[0020]
Next, the operation of the travel detection means 21 will be described with reference to FIG. However, the case where the travel detector 9 is an accelerometer will be described.
When the car 1 starts to climb, it is determined in step S1 whether the output of the accelerometer 9 is in the positive direction. If it is the positive direction, it waits for the output of the accelerometer 9 to become negative in step S2. When the output of the accelerometer 9 becomes negative, “stop after running” is output in step S3. That is, when the accelerometer 9 outputs an output in the acceleration direction and then outputs an output in the deceleration direction after a certain time, it becomes “stop after running”.
[0021]
If it is determined in step S1 that there is no output from the accelerometer 9, the process proceeds to step S4 to output "stop without running". That is, the car 1 does not travel and the stop output is maintained.
When the car 1 is traveling downward, the positive direction of the output of Step S1 is read as a negative direction, and the negative direction of the output of Step S2 is read as a positive direction. That is, the acceleration output is in the negative direction in the downward direction, but the acceleration output is in the positive direction when decelerating.
[0022]
Next, the operation of the numeral detection means 19 will be described with reference to FIG.
In order to clarify the stop floor of the car 1, the normal position indicator 2 is displayed with a higher brightness than the other floors.
In step S11, the image of the second camera 5 is binarized. In step S12, the high luminance portion of the image is cut out. In step S13, it is collated with numeric data stored as data in advance, and in step S14, a number is specified. Then, the specified number is temporarily stored in step S15.
[0023]
Next, the detection operation of each abnormality and failure mode will be described with reference to FIGS. 4 to 5 and FIG. In the figure, 31 to 34 are AND circuits, 35 is an OR circuit, 36 and 37 are timers for setting the time T1, 38 and 39 are timers for setting the time T2, 40 and 41 are timers for setting the time T3, 42 Reference numerals .about.47 denote AND circuits. Note that T1 <T2 and T1> T3.
[0024]
▲ 1 ▼ Confinement mode after driving (Figs. 4 and 9)
This mode occurs when, for example, a passenger 3 enters the car 1 and registers a call for the destination floor, and the car 1 travels and stops at the destination floor. At this time, when there are a plurality of passengers 3, there may be a plurality of destination floors, and there may be a stop at the floor where the hall call is registered.
While the car 1 is traveling, a “passenger present” signal and a “fully closed” signal are output. When the car 1 stops, a “stop after running” signal is output, the output of the AND circuit 31 becomes “H”, and the timers 36 and 38 start counting time.
[0025]
At this time, it is assumed that the door is not opened and the fully closed state is maintained. Thus, when the passenger 3 is detected by the first camera 4 and the predetermined time T1 elapses, the output of the timer 36 becomes “H”. At this time, even if the door cannot be opened on this floor, if the running function is normal and there is a call on the other floor, the car 1 responds to the call on the other floor after the output of the timer 36 becomes “H”. Drive to another floor.
[0026]
If the running function is faulty, the output of the timer 36 becomes “H”, and after a certain period of time T2 has elapsed since the timer 38 was reset, the output of the timer 38 becomes “H”. The “floor name” signal detected by the position indicator numeral detection process is added to the signal and output. The time T1 is set in seconds and the time T2 is set in minutes.
[0027]
(2) Confinement mode without running (Figs. 5 and 9)
This mode occurs when, for example, the passenger 3 gets into the car 1 and registers a call for the destination floor, but does not start traveling and maintains a stop state.
When the “passenger present” signal, “fully closed” signal, and “stop without running” signal are output, the output of the AND circuit 32 becomes “H”, and the timer 39 starts counting time. When the fixed time T2 elapses, the output of the timer 39 becomes "H", the output of the AND circuit 44 becomes "H", and the "floor name" signal is added to the "contain without running" signal and output. .
[0028]
(3) Door opening / closing failure mode (Figs. 6 and 9)
(3) -1 Car passenger present This mode occurs when the vehicle travels in response to another floor call in mode (1). That is, it occurs when the door on the stop floor is not opened due to some abnormality (for example, when there is a pebble or the like on the landing threshold), and the passengers cannot get off or the passengers cannot get on.
In the mode (1), the car 1 stops, the output of the AND circuit 31 becomes “H”, and when the set time T1 of the timer 36 elapses, the output of the AND circuit 43 becomes “H”, and the “door opening / closing failure” signal is displayed. “Floor name” signal is added and output. At the same time, the timer T2 is reset.
[0029]
In this case, the next time you stop on this floor, the door opens normally and may be able to run, so do not notify the monitoring center immediately, but notify the monitoring center when the same abnormality occurs a certain number of times You may do it.
[0030]
(3) -2 No car passengers In this mode, for example, a passenger call is generated on a floor other than the stop floor of the car 1, and the car 1 travels in response to this call. ) Occurs when the stop floor door does not open and the waiting area cannot enter.
When a “no passenger” signal, a “stop after driving” signal, and a “fully closed” signal are output, the output of the AND circuit 33 becomes “H”, and the timer 37 starts counting time.
[0031]
On the stop floor, the door cannot be opened, so that no passenger is put on it, and when the fixed time T1 elapses with the door closed, the output of the timer 37 becomes “H” and the output of the AND circuit 46 becomes “H”. At this time, if the traveling function is normal and the other floor is called, the car travels to the other floor. Thus, the “floor name” signal is added to the “door opening / closing failure” signal, and is output and recorded in the abnormality / failure storage means 24. The condition for reporting to the monitoring center may be the same as the condition (3) -1, or may be set separately.
[0032]
(4) Unusable mode (Fig. 9)
(4) -1 Unable to open the empty call door (3) -2 When the output of the timer 37 becomes “H”, the timer 40 is reset, and when the fixed time T3 elapses, the output of the timer 40 is “H” and the output of the AND circuit 45 becomes “H”. As a result, the “floor name” signal is added to the “unusable” signal and output, which is reported to the monitoring center. The fixed time T3 is set in minutes.
[0033]
(4) -2 Unable to travel in a car A normal elevator closes the rear door of the service and waits. Here, when the “fully open” signal is output and the “stop after running” signal or the “stop without running” signal is output, the output of the OR circuit 35 becomes “H”, and the output of the AND circuit 34 is “H”. Thus, the timer 41 starts counting time, and when the fixed time T3 elapses, the output of the timer 41 becomes “H” and the output of the AND circuit 47 becomes “H”. As a result, the “floor name” signal is added to the “unusable” signal and output, which is reported to the monitoring center.
[0034]
In this way, the first and second cameras 4 and 5 installed in the car 1 and the travel detector 9 installed on the car 1 alone can be used to close the passenger without additional wiring to the operation panel in the car. Since the corresponding floor is notified to the monitoring center at the time of loading, the corresponding floor can be easily grasped before the maintenance staff arrives at the site, and passengers can be rescued. Further, since it is possible to detect a door opening / closing failure with a high occurrence ratio among elevator abnormalities / failures that cannot be detected by conventional surveillance cameras, it is possible to predict future failures and improve remote monitoring services.
[0035]
Embodiment 2. FIG.
In the first embodiment, the accelerometer on the car 1 is used as the travel detector 9, but this is configured as follows.
(1) Install a tachometer in the car 1, bring it into contact with the guide rail, and detect that the car is running if the tachometer is rotating.
(2) A magnetic detector is installed in the car 1, and this is opposed to the guide rail in a non-contact state to detect a magnetic change. That is, since the guide rail is made of iron, it is detected that the car 1 is traveling if there is a magnetic change.
[0036]
(3) Install another camera on the car 1 and detect the running of the car 1 from the image change. That is, the traveling of the car 1 is detected based on the change in shade of the image of the hoistway wall surface.
(4) A distance meter using a laser beam or the like is installed in the car 1, and the traveling of the car 1 is detected by a change in the output of the distance meter when the laser beam or the like is directed to a hoistway ceiling or a pit.
[0037]
Embodiment 3 FIG.
In the first embodiment, the second camera 5 is installed for detecting the number of the position indicator 2. However, when the floor indicator is provided at the upper part of the operation panel in the car and is within the imaging range of the first camera 4, the image is displayed. Since the display location is specified at the time of processing, a number may be detected from an image in a specific range.
[0038]
【The invention's effect】
Or as described in the first aspect of the present invention, to detect the abnormal state of the car based on the outputs of the first camera及 beauty travel detector for capturing the state of the car, the display-car position indicator The floor number is detected as the corresponding floor in the abnormal state of the car based on the output of the second camera that captures the floor number to be reported and notified to the monitoring center, so additional wiring to the operation panel in the car Therefore, when an abnormality or failure occurs , the situation and the corresponding floor can be grasped before the maintenance staff arrives at the site .
[0039]
In the second aspect of the invention, the second camera that detects the presence / absence of passengers in the car and the opening / closing state of the door from the output of the first camera that captures the situation in the car and images the floor number displayed on the position indicator in the car. detecting the floor numbers position indicator from the output to detect the confinement of passengers from traveling state of chromatic Mu及 Bikago passengers, detects the floor number as appropriate floor of confinement of the passenger, also, detecting the door from the travel state of the opening and closing like Tai及 Bikago the door opening and closing abnormality by detecting a floor number as appropriate floor doors closing abnormality, in which so as to report them to the monitoring center .
[0040]
Thereby, without additional wiring to the operation panel in the car, the passenger can be easily rescued by grasping the corresponding floor before the maintenance staff arrives at the site when the passenger is confined. Further, since a floor where a door opening / closing failure has occurred is detected, a failure can be predicted later, and the remote monitoring service can be improved.
[0041]
Further, in the third invention, when the door of the car is fully closed and the car is stopped after the car has run and the door cannot be opened even after the first predetermined time has elapsed, the door opening / closing failure on the car stop floor is recorded. Since this is done, it is possible to easily grasp the floor where the door opening / closing failure occurs.
[0042]
According to the fourth aspect of the present invention, when the car is fully closed and the passenger is in the car, and the car stops and the car stops, the car cannot be opened even after the second predetermined time has elapsed. Since the confinement after running is detected in the vehicle, it is possible to easily grasp the confinement occurrence floor.
[0043]
In the fifth aspect of the invention, if the car is fully closed and a passenger is in the vehicle, and the car is stopped and the door cannot be opened even after the second predetermined time has elapsed, the car is allowed to travel on the car stop floor. Since it was made to detect the confinement, it is possible to easily grasp the confinement occurrence floor.
[0044]
Further, in the sixth invention, when no passengers in the car are present and the car door is fully closed and the car does not travel even after the third predetermined time has elapsed, or the car door is fully opened, and If the car does not run even after the third predetermined time has elapsed with the car stopped, it is possible to easily detect the floor where the car has been unusable since it has been detected that the car cannot be used.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a first embodiment of the present invention.
FIG. 2 is a diagram showing a first embodiment of the present invention, and is a partial detailed block diagram of FIG. 1;
FIG. 3 is a normal operation time chart showing the first embodiment of the present invention.
FIG. 4 is a post-travel confinement operation time chart showing the first embodiment of the present invention;
FIG. 5 is a time chart illustrating the confinement operation without traveling, according to the first embodiment of the present invention.
FIG. 6 is a door opening / closing malfunction time chart showing the first embodiment of the present invention.
FIG. 7 is a travel detection operation flowchart showing the first embodiment of the present invention.
FIG. 8 is a position indicator numeral detection operation flowchart showing the first embodiment of the invention;
FIG. 9 is an abnormality detection logic circuit diagram showing the first embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Car, 2 Position indicator, 3 Passenger, 4 1st camera (indoor surveillance camera), 5 2nd camera (position indicator surveillance camera), 6 On-car equipment, 7 In-car image processing part, 8 Position indicator image Processing unit, 9 travel detector (accelerometer), 10 control unit, 11 car control panel, 12 communication device, 13 monitoring center, 14 image processing means, 15 passenger detection means, 16 image recording means, 17 door open / close detection means, 18 Image processing means, 19 Number detection means, 20 Temporary storage means, 21 Travel detection means, 22 Confinement failure detection means, 23 Door open / close abnormality detection means, 24 Abnormality / failure storage means, 31-34 AND circuit, 35 OR circuit 36-41 timer, 42-47 AND circuit.

Claims

A first camera that captures the situation in the car, a second camera that captures floor numbers displayed by a position indicator installed in the car, and a travel detector that detects the travel state of the car are provided. to detect an abnormal state of the car based on the outputs of the first camera及Bihashi row detector, the floor numbers on the basis of the output of the second camera as appropriate floor of the abnormal state of the car An elevator remote monitoring device comprising: a control unit for detecting ; and a communication device for reporting the abnormal state of the car and the corresponding floor output from the control unit to a monitoring center.

A first camera that captures the situation in the car, a second camera that captures floor numbers displayed by a position indicator installed in the car, and a travel detector that detects the travel state of the car are provided. Passenger detection means for detecting the presence or absence of passengers in the car by image processing the output of the first camera, and detecting the open / closed state of the door provided in the car by image processing the output of the first camera a door opening and closing detection means for, and numbers detecting means for detecting a floor number of the position indicator by image processing the output of the second camera, from the output of Chikara及 beauty the running detector out of the passenger detecting means detecting the confinement the passengers, and confinement failure detecting means the floor number from the output is detected as the corresponding floor of confinement of the passenger the number detecting means, Chikara及 beauty out of the door opening and closing detection means From the output of the travel detector, Out, and the door opening and closing abnormality detection means for detecting the floor number from the output of said numeral detecting means as a true floor of the door opening and closing abnormality, confinement of the passengers to be outputted from said containment failure detecting means and relevant floor, and the door opening and closing abnormality of the door which is output from the detection means closing abnormality and comprising a communication device to report to the monitoring center to the appropriate floor elevator remote monitoring device.

The door opening / closing abnormality detecting means detects that the car door is fully closed from the output of the first camera, and the door cannot be opened even if the first predetermined time elapses after the car has stopped running. 3. The elevator remote monitoring device according to claim 2, wherein a door opening / closing failure at a car stop floor indicated by an output of the second camera is recorded.

The confinement failure detection means detects the passenger in the car from the output of the first camera, detects that the car door is fully closed, and stops the second after the car has traveled. 3. The elevator remote monitoring device according to claim 2, wherein, when the door cannot be opened even after a predetermined time elapses, a confinement after traveling on the car stop floor indicated by the output of the second camera is detected.

The confinement failure detection means detects from the output of the first camera that a passenger is in the car and the door of the car is fully closed, and the car is stopped for a second predetermined time. 3. The elevator remote monitoring device according to claim 2, wherein when the door cannot be opened even after a lapse of time, the vehicle is detected not to travel on the car stop floor indicated by the output of the second camera but to detect confinement.

If the car does not travel after the third predetermined time has elapsed when it is detected from the output of the first camera that no passenger is in the car and the car door is fully closed, or If it is detected from the output of one camera that the car door is fully open, and the car does not run after a third predetermined time with the car stopped, the output of the second camera is respectively The elevator remote monitoring device according to claim 1 or 2, further comprising an unusable detecting means for detecting unusable in the car stop floor shown.