JP3907858B2 - Work amount display device of hydraulic excavator - Google Patents

Description

【００８７】
ここで、例えば、５回の平均土砂量を使って時間当たりの土砂量（揚土サイクル）Ｗｃを求める場合は、バージ船毎の合計回数Ｎａｌｌが５になるまでは、時間当たりの土砂量は計算されずに、合計回数Ｎａｌｌが５以降から１増すごとに時間当たりの土砂量（揚土サイクル）Ｗｃが計算される。
【００８８】
また、ある回数毎に時間当たりの土砂量Ｗｃを表示することもできる。この場合は、ステップ８１のＮａｌｌ≧ｉを
Ｎａｌｌ＝ｉ＋ｉ×ｓ
に置き換える。ｓは初期値は０で、Ｗｃを計算する度に１加算される。
【００８９】
例えば、過去５回毎に表示させたい場合は、５回目と１０回目と１５回目という具合に時間当たりの土砂量Ｗｃを計算する。
【００９０】
次にステップ８３では、現在の状況画面３１の揚土量表示部３１２に土砂量Ｗｈ１と揚土積算回数表示部３１３に日毎の積算回数ＣＮ１ｔと揚土量積算値表示部３１４に総量Ｗｌｔが表示される。また、揚土サイクルＷｃが更新されていればＷｃも揚土サイクル表示部３１５に表示する。
【００９１】
次に、ステップ８４において通信制御部２７７から時々刻々と変化するバケット内部の荷重Ｗｒ１が受信されているか否かを判断する。これが受信されていなければ図１６のステップ８６に進む。受信されていれば、ステップ８５において、荷重Ｗｒ１を現在の状況画面３１の荷重状態表示部３１１に表示する。
【００９２】
続いて、ステップ８６において、計測終了信号ＥがＯＮか否かを判定する。
【００９３】
ＯＮでない場合は、ステップ９２に進む。ＯＮの場合（計測終了ボタンを管理者が押した場合）には、ステップ８７において、終了時刻Ｔｅｎｄ（Ｂｎ）を現在時刻に設定する。次に、ステップ８８においてデータ停止信号Ｃｅｎｄを土量管理装置２７の通信制御部２７７を使って荷重計測装置本体１９に送る。
【００９４】
次にステップ８９において、バージ船毎の作業時間Ｔｓｅ（Ｂｎ）と平均土量Ｗａｖｇと時間当たりの土量Ｗｂｃを計算する。それぞれの値は次式で与えられる。
【００９５】
【数２】

【００９６】
ここで、Ｂｎは終了したときのバージ船の隻数を示す。
【００９７】
続いて、ステップ９０において、管理者が入力したＢａｒｇｅ＃をバージ船履歴画面３３のバージ船番号表示部３３１に表示する。また、開始時刻表示部３３２と終了時刻表示部３３３と作業時間表示部３３４には、それぞれＴｓｔａｒｔ（Ｂｎ）とＴｅｎｄ（Ｂｎ）とＴｓｅ（Ｂｎ）を表示する。先に計算したＷａｖｇとＷｂｃは、それぞれ、平均土量表示部３３５と揚土サイクル表示部３３６に表示する。最後に、
【００９８】
【数３】

【００９９】
を合計土量表示部３３７に表示する。同時に、日報画面３４のタイムテーブル３４１上に、Ｔｓｔａｒｔ（Ｂｎ）とＴｅｎｄ（Ｂｎ）を結ぶバーを表示する。
【０１００】
次に、ステップ９１においてバージ船毎の履歴を印刷するために、
【０１０１】
【数４】

【０１０２】
をプリンタ２９で出力する。
【０１０３】
続いて、ステップ９２において、印刷信号ＰがＯＮか否かを判断する。ステップ９３において、ＯＮの場合は、日報に関するデータをプリンタ２９に送って印刷する。ＯＮでない場合は、ステップ９４に進む。次にステップ９４では、プログラム終了信号ＰＥがＯＮか否かを判断する。ＯＮである場合は、土量管理装置２７の電源を自動的に切る。ＯＮでない場合は、ステップ７２からの処理を繰り返す。
【０１０４】
次に、２台の油圧ショベルによって移送された土砂の量をトン数で管理する場合の処理を図１５から図１７を用いて説明する。
【０１０５】
図１７は表示装置２８に表示される表示画面である。
【０１０６】
同図に示される表示画面４０の表示項目は、日毎の２台の油圧ショベルの作業量を示す現在の状況画面４１、日付と現在時刻を表示する日付時刻画面４２、バージ船毎の作業履歴を示すバージ船履歴画面４３、作業履歴をバーで示す日報画面４４からなる４つの画面と、計測開始ボタン３５、計測終了ボタン３６、印刷ボタン３７、プログラ終了ボタン３８からなる４つのボタンで構成される。
【０１０７】
現在の状況画面４１において、４１１ａは１台目（１号機）の時々刻々変化するバケット内部の荷重Ｗｒ１を表示する荷重状態表示部、４１１ｂは２台目（２号機）の時々刻々と変化するバケット内部の荷重Ｗｒ２を表示する荷重状態表示部、４１２ａは１号機が土砂をホッパに投入した１回の量Ｗｈ１を表示する揚土量表示部、４１２ｂは２号機が土砂をホッパに投入した１回の量Ｗｈ２を表示する揚土量表示部、４１３ａは１号機が土砂をホッパに投入する日毎の積算回数ＣＮ１ｔを示す積算回数表示部、４１３ｂは２号機が土砂をホッパに投入する日毎の積算回数ＣＮ２ｔを示す積算回数表示部、４１４ａは１号機の日毎の土砂の投入総量Ｗ１ｔを示す積算値表示部、４１４ｂは２号機の日毎の土砂の投入総量Ｗ２ｔを示す積算値表示部、４１５はある時間当たりの土砂量Ｗｃを表示する揚土サイクル表示部である。さらに、４１６は２台の積算回数ＣＮｌｔとＣＮ２ｔを合算した量を示す合計揚土回数表示部、４１７は２台の投入総量Ｗ１ｔとＷ２ｔを足した合計量を示す合計揚土量表示部である。
【０１０８】
この画面では、揚土量表示部４１２ａと積算回数表示部４１３ａと積算値表示部４１４ａの値は荷重計測装置本体１９から土砂量ｗｈ１が送られてくる毎に更新される。また、揚土量表示部４１２ｂと積算回数表示部４１３ｂと積算値表示部４１４ｂの値は荷重計測装置本体１９から土砂量Ｗｈ２が送られてくる毎に更新される。さらに、土砂量Ｗｈ１またはＷｈ２のいずれかが送られてくる毎に、合計揚土回数表示部４１６と合計揚土量表示部４１７は更新される。また、揚土サイクル表示部４１５に示す値は、土砂量Ｗｈ１またはＷｈ２のいずれかが送られてきたときにある一定回数毎に更新される。日付画面４２１は１台の時と同じである。
【０１０９】
次に、バージ船履歴画面４３において、４３１は管理者が土量管理装置２７に人力するバージ船番号表示部、４３２は１つ前のバージ船において油圧ショベルが土砂を掬い出しを始めた時刻Ｔｓｔａｒｔ（Ｂｎ）を示す開始時刻表示部、４３３は、１つ前のバージ船において油圧ショベルが土砂を掬うのを終了した時刻Ｔｅｎｄ（Ｂｎ）を表示する終了時刻表示部、４３４は１つ前のバージ船においてショベルが作業をした時間Ｔｓｅ（Ｂｎ）を示す作業時間表示部、４３５は、１つ前のバージ船から２台の油圧ショベルが掬い出した１杯当たりの平均土量Ｗａｖｇを表す平均土量表示部、４３６は１つ前のバージ船において２台の油圧ショベルが掬い出した時間当たりの土量Ｗｂｃを示す揚土サイクル表示部、そして、４３７はバージ船毎の２台の合計土量ΣＷａｌｌ（ｋ）＝（Ｗｂ１（Ｂｎ）＋Ｗｂ２（Ｂｎ））を表示する。
【０１１０】
ここで、Ｂｎはバージ船の隻数である。次に、日報画面４４には、タイムテーブル４４１とバージ船毎の開始時刻Ｔｓｔａｒｔ（Ｂｎ）と終了時刻Ｔｅｎｄ（Ｂｎ）を結ぶバー４４２がある。
【０１１１】
バージ履歴画面４３と日報画面４４で表示する値とバーは、１隻のバージ船からの土砂の掬い出しが終了する度に更新される。
【０１１２】
次に、２台の油圧ショベルを使用する場合の土量管理装置２７における土量管理の処理手順を図１４から図１６に示すフローチャートを用いて説明する。
【０１１３】
図１４のスタートプログラムにおいて、ここでは、油圧ショベルが２台であるので、ｊは１または２となる。ステップ７０では、先に説明したと同様に、各種パラメータを初期化する。具体的には、バージ船の隻数Ｂｎや１号機の日毎の積算回数ＣＮ１ｔと２号機の日毎の積算回数ＣＮ２ｔや１号機の日毎の総量Ｗ１ｔと２号機の日毎の総量Ｗ２ｔを０に設定する。その他は油圧ショベルが１台のときと同様であるので説明を省略する。
【０１１４】
スタートプログラムが終了すると、図１５および図１６に示す作業管理プログラム（１）が起動する。
【０１１５】
はじめに、ステップ７２で、計測開始信号ＳがＯＮか否かを判定する。ここで、ＯＮである場合は、ステップ７３において、バージ番号Ｂａｒｇｅ＃を設定する。次に、ステップ７４において、バージ船の隻数Ｂｎに１を加えて、後に使うバージ船毎の合計回数Ｎａｌｌを０とする。
【０１１６】
次にステップ７５において、計測開始時刻Ｔｓｔａｒｔで（Ｂｎ）を現在の時刻Ｔｎｏｗに設定する。次に、ステップ７６ではデータ要求Ｃｓｔａｒｔを作成し、土量管理装置２７の通信制御部２７７を使ってで荷重計測装置本本１９送る。
【０１１７】
次に、ステップ７７において、通信制御部２７７が１号機の土砂量Ｗｈ１または２号機の土砂量Ｗｈ２を荷重計測装置本体１９から受信したか否かを判定する。土砂量Ｗｈ１を受信していれば、次のステップ７８においてバージ船毎の１号機と２号機がホッパに土砂を投入した合計回数Ｎａｌｌに１を加算し、ホッパへ投入する１回の土砂量としてＷｈ１を総量Ｗａｌｌ（Ｎａｌｌ）に代入し、投入した時間としてバケットダンプ操作開始時間Ｔｈ１を投入時間Ｔａｌｌ（Ｎａｌｌ）に代入する。また、２号機の土砂量Ｗｈ２を受信していれば、ステップ７８においてバージ船毎の合計回数Ｎａｌｌに１を加算し、ホッパへ投入する１回の土砂量としてＷｈ２をＷａｌｌ（Ｎａｌｌ）に代入し、投入した時間としてバケットダンプ操作開始時間Ｔｈ２を投入時間Ｔａｌｌ（Ｎａｌｌ）に代入する。続いて、ステップ７７において、１号機の土砂量Ｗｈ１と投入時間Ｔｈ１を受信していれば、ステップ７９では、次式のように、１号機のバージ船毎の土砂量Ｗｂｌ（Ｂｎ）と回数ＣＮ１（Ｂｎ）を計算する。
【０１１８】
Ｗｂ１（Ｂｎ）＝Ｗｂ１（Ｂｎ）＋Ｗｈ１
ＣＮ１（Ｂｎ）＝ＣＮ１（Ｂｎ）＋１
さらに、ステップ７７において２号機の土砂量Ｗｈ２と投入時間Ｔｈ２を受信していれば、ステップ７９では、次式のように、２号機のバージ船毎の土砂量Ｗｂ２（Ｂｎ）と回数ＣＮ２（Ｂｎ）を計算する。
【０１１９】
Ｗｂ２（Ｂｎ）＝Ｗｂ２（Ｂｎ）＋Ｗｈ２
ＣＮ２（Ｂｎ）＝ＣＮ２（Ｂｎ）＋１
さらに、ステップ８０では、１号機の値を受信しでいれば、日毎の積算回数ＣＮ１ｔと総量Ｗ１ｔを計算し、同じく２号機の値を受信していれば、日毎の積算回数ＣＮ２ｔと総量Ｗ２ｔを計算する。ＣＮｊｔとＷｊｔは、次式で与えられる。
【０１２０】
ＣＮｊｔ＝ＣＮｊｔ＋１
Ｗｊｔ＝Ｗｊｔ＋Ｗｈｊ
次に、ステップ８１においで、合計回数Ｎａｌｌが、時間当たりの土砂量を計算するめの揚土サイクル係数ｉよりも等しいもしくは大きいか否かを判定する。大きけれければ、ステップ８２において時間当たりの土砂量（揚土サイクル）Ｗｃを計算する。そうでない場合は、ステップ８３へ行く。
【０１２１】
Ｗｃは次式で与えられる。
【０１２２】
【数５】

【０１２３】
ここで、例えば、５回の平均土砂量を使って時間当たりの土砂量（揚土サイクル）Ｗｃを求める場合は、バージ船毎の合計回数Ｎａｌｌが５になるまでは、時間当たりの土砂量は計算されずに、合計回数Ｎａｌｌが５以降から１増すごとに時間当たりの土砂量（揚土サイクル）Ｗｃが計算される。
【０１２４】
また、ある回数毎に時間当たりの土砂量Ｗｃを表示することもできる。この場合は、ステップ８１のＮａｌｌ≧ｉを
Ｎａｌｌ＝ｉ＋ｉ×ｓ
に置き換え、ｓは初期値が０で、Ｗｃを計算する度に１加算する。
【０１２５】
例えば、過去５回毎に表示させたい場合は、５回目と１０回目と１５回目という具合に時間当たりの土砂量Ｗｃを計算する。
【０１２６】
次にステップ８３では、ステップ７７において１号機の土砂量Ｗｈ１と投入時間Ｔｈ１を受信していれば、現在の状況画面４１の揚土量表示部４１２ａに土砂量Ｗｈ１と揚土積算回数表示部４１３ａに日毎の積算回数ＣＮ１ｔと揚土量積算直表示部４１４ａに総量Ｗ１ｔが表示される。また、ステップ７７において２号機の土砂量Ｗｈ２と投入時間Ｔｈ２を受信していれば、現在の状況画面４１の揚土量表示部４１２ｂに土砂量Ｗｈ２と揚土積算回数表示部４１３ｂに日毎の積算回数ＣＮ２ｔと揚土量積算値表示部４１４ａに総量Ｗ２ｔが表示される。また、揚土サイクルＷｃが更新されていればＷｃも揚土サイクル表示部４１５に表示する。さらに、ステップ７７におおいて、１号機もしくは２号機の土砂量と投入時間を受信している場合は、日毎の合計揚土回致ＣＮ１ｔ＋ＣＮ２ｔを表示し、日毎の合計揚土量Ｗ１ｔ＋Ｗ２ｔを表示する。
【０１２７】
次に、ステップ８４において通信制御部２７７で時々刻々と変化するバケット内部の荷重Ｗｒ１、またはＷｒ２を受信しているか否かを判断する。受信していなければ、ステップ８６に進む。Ｗｒ１を受信していれば、ステップ８５において、現在の状況画面４１の荷重状態表示部４１１ａに表示する。同様に、Ｗｒ２を受信していれば、荷重状態表示部４１１ｂに表示する。
【０１２８】
続いて、ステップ８６において、計測終了信号ＥがＯＮか否かを判定する。ＯＮでない場合は、ステップ９２に進む。ＯＮである場合（計測終了ボタンを管理者が押した場合）には、ステップ８７において、終了時刻Ｔｅｎｄ（Ｂｎ）を現在時刻に設定する。次に、ステップ８８においてデータ停止信号Ｃｅｎｄを土量管理装置２７の通信制御部２７７を使って荷重計測装置本体１９に送る。
【０１２９】
次にステップ８９において、バージ船毎の作業時間Ｔｓｅ（Ｂｎ）と平均土量Ｗａｖｇと時間当たりの土量Ｗｂｃが計算する。それぞれの値は次式で与えられる。
【０１３０】
【数６】

【０１３１】
ここで、Ｂｎは終了したときのバージ船の隻数を示す。
【０１３２】
続いて、ステップ９０において、管理者が入力したＢａｒｇｅ＃をバージ船履歴画面３３のバージ船番号表示部４３１に表示する。また、開始時刻表示部４３２と終了時刻表示部４３３と作業時間表示部４３４には、それぞれＴｓｔａｒｔ（Ｂｎ）とＴｅｎｄ（Ｂｎ）とＴｓｅ（Ｂｎ）を表示する。先に計算したＷａｖｇとＷｂｃはそれぞれ、平均土量表示部４３５と合計土量表示部４３７に表示する。同時に、日報画面３４のタイムテーブル３４１上に、Ｔｓｔａｒｔ（Ｂｎ）とＴｅｎｄ（Ｂｎ）をＴｅｎｄ（Ｂｎ）を結ぶバーを表示する。
【０１３３】
次に、ステップ９１においてバージ船毎の履歴を印刷するために、
【０１３４】
【数７】

【０１３５】
をプリンタ２９に出力する。
【０１３６】
続いて、ステップ９２において、印刷信号ＰがＯＮか否かを判断する。ＯＮの場合は、ステップ９３において、日報に関するデータをプリンタ２９に送って印刷する。ＯＮでない場合は、ステップ９４に進む。
【０１３７】
次いで、ステップ９４では、プログラム終了信号ＰＥがＯＮか否かを判断する。ＯＮである場合は、土量管理装置２７の電源を自動的に切る。ＯＮでない場合は、ステップ７２からの処理を繰り返す。
【０１３８】
次に、１台の油圧ショベルの移送した土砂の量を体積で管理する場合の処理を図１８から図２１を用いて説明する。
【０１３９】
図１８は本発明の一実施形態に備えられる表示装置２８に表示される表示画面である。
【０１４０】
同図に示される表示画面５０の表示項目は、バージ船毎の作業量を示す揚土状況画面５１、日付と現在時刻を表示する日付時刻画面５２、日毎の作業量を示す履歴画面５３、作業履歴をバーで示す日報画面５４、比重設定画面５５からなる５つの画面と、計測開始ボタン３５、計測終了ボタン３６、印刷ボタン３７、プログラム終了ボタン３８、比重設定ボタン３９からなる５つのボタンで構成される。
【０１４１】
揚土状況画面５１には、時々刻々と変化するバケット内部の荷重Ｗｒ１を示す荷重状態表示部５１１と、油圧ショベルがホッパへ投入した土砂の荷重Ｗｈ１を比重Ｃｄで割った値を表示する土量表示部５１２と、バージ船毎の合計回数Ｎａｌｌを表示する揚土回数表示部５１３と、バージ船毎の総量Ｖｂ１（Ｂｎ）を表示する積算土量表示部５１４と、時間当たりの土砂量Ｖｃを表示するサイクル表示部５１５がある。この画面データは、土砂の荷重Ｗｈ１が受信される毎に更新される。
【０１４２】
次に、日付画面５２には、現在の日付を表示する日付表示部５２１と現在時刻Ｔｎｏｗを表示する時刻表示部５２２がある。また、履歴画面５４はバージ船の隻数Ｂｎを表示する隻数表示部５３１と、１隻目のバージ船の作業開始時刻Ｔｓｔａｒｔ（１）を表示する開始時刻表示部５３２と、１番最近の作業終了時刻Ｔｅｎｄ（Ｂｎ）を表示する終了時刻表示部５３３と、日毎の作業時間Ｔｗｏｒｋを示す作業時間表示部５３４と、日毎の積算回数ＣＮ１ｔを表示する揚土回数表示部５３５と、日毎の土砂の総量Ｖ１ｔを表示する積算土量表示部５３６で構成される。この画面は計測終了ボタンが押される毎に更新される画面である。
【０１４３】
次に、日報画面５４には、横軸を時刻とするタイムテーブル５４１とＢｎ番目のバージ船におけるバージ船毎の作業時間Ｔｓｅ（Ｂｎ）を表示するバー５４２がある。このバーはバージ船毎の計測開始時刻Ｔｓｔａｒｔ（Ｂｎ）と計測終了時刻Ｔｅｎｄ（Ｂｎ）を結ぶ。
【０１４４】
比重設定画面５５は、現在の比重Ｃｄが表示される比重表示部５５１と比重を設定するための比重ボタン３９で構成される。
【０１４５】
次に、土量管理装置２７における土量管理の処理手順を図１９から図２１に示すフローチャートを用いて説明する。
【０１４６】
図１９は、土量管理装置２７のスタートプログラム（２）である。
【０１４７】
このプログラムは、図２の土量管理装置２７に電源が入ると起動される。
【０１４８】
はじめに、ステップ１００において、作業量管理プログラムで使用する各種パラメータが初期化される。バージ船の隻数Ｂｎとバージ船毎の合計回数Ｎａｌｌがまず０に設定される。続いて、日毎の油圧ショベルがホッパへ土砂を投入した積算回数ＣＮｊｔと総量Ｖｊｔが０に設定される。今の場合、油圧ショベルが１台であるのでｊは１とする。つまり、日毎の積算回数ＣＮｊｔはＣＮ１ｔとなり、総量ＶｊｔはＶ１ｔとなる。但し、前回電源を切った時と今回電源を入れた時で日付が変わっていなければ、ＢｎとＣＮ１ｔとＶ１ｔは０に設定しない。
【０１４９】
次に、油圧ショベルがホッパヘ投入する時間当たりの土砂量（揚土サイクル）Ｖｃを０に設定する。さらに作業時間の累計Ｔｗｏｒｋが０に設定される。このＴｗｏｒｋも、前回電源を切った時と今回電源をいれた時とで日付が変わっていなければ、初期化しない。
【０１５０】
最後にステップ１０１において、時間当たりの土砂量を計算すための係数ｉを所定の数に設定する。例えば、過去５回の投入の時間当たりの土砂量を計算する場合は、ｉを５と設定する。
【０１５１】
次に、土砂の体積を計算するための比重Ｃｄを所定の値にセットして、スタートプログラムが終了する。スタートプログラムが終了すると作業管理プログラム（２）が起動する。
【０１５２】
図２０および図２１はに作業管理プログラム（２）の処理手順を示すフローチャートである。
【０１５３】
まず、ステップ１０２で、計測開始信号ＳがＯＮか否かを判定する。ここで、ＯＮである場合（管理者が計測開始ボタンを押したとき）には、ステップ１０３において、バージ船の隻数Ｂｎに１を加えて、バージ船毎の合計回数Ｎａｌｌを０とする。次にステップ１０４において、計測開始時刻Ｔｓｔａｒｔ（Ｂｎ）を現在の時刻Ｔｎｏｗに設定する。次に、ステップ１０５ではデータ要求信号Ｃｓｔａｒｔを作成し、土量管理装置２７の運信制御部２７７を使って荷重計測装置本体１９に送る。
【０１５４】
ステップ１０６において、通信制御部２７７が土砂量Ｗｈ１とバケットダンプ操作開始時間Ｔｈ１を荷重計測装置本体１９から受信したか否かを判定する。受信していなければ、ステップ１１３に進む。受信していれば、次のステップ１０７においてバージ船毎の合計回数Ｎａｌｌに１を加算し、土砂量Ｗｈ１を比重Ｃｄで割って体積を算出し、Ｖａｌｌ（Ｎａｌｌ）に代入し、ホッパへ土砂を投入した時間としてバケットダンプ操作開始時間Ｔｈ１をＴａｌｌ（Ｎａｌｌ）に代入する。
【０１５５】
次に、ステップ１０８においてバージ船毎のホッパへ投入した土砂量Ｖｂ１（Ｂｎ）と回数ＣＮ１（Ｂｎ）を計算する。Ｖｂ１（Ｂｎ）とＣＮｌ（Ｂｎ）は次式で与えられる。
【０１５６】
Ｖｂ１（Ｂｎ）＝Ｖｂ１（Ｂｎ）＋Ｗｈ１／Ｃｄ
ＣＮ１（Ｂｎ）＝ＣＮ１（Ｂｎ）＋１
次に、ステップ１０９において、日毎の積算回数ＣＮ１ｔと総量Ｖ１ｔを求める。式は以下の通りである。
【０１５７】
ＣＮ１ｔ＝ＣＮ１ｔ＋１
Ｖ１ｔ＝Ｖ１ｔ＋Ｗｈ１／Ｃｄ
続いて、ステップ１１０において、バージ船毎の合計回数Ｎａｌｌが時間当たりの土砂量を計算すための揚土サイクル係数ｉよりも等しいもしくは大きいか否かを判定する。小さければステップ１１２に進む。等しいもしくは大きければ、ステップ１１１において時間当たりの土砂量（揚土サイクル）Ｖｃを計算する。
Ｖｃは次式で与えられる。
【０１５８】
【数８】

【０１５９】
ここで、例えば、５回の平均土砂量を使って時間当たりの土砂量（揚土サイクルＶｃを求める場合は、バージ船毎の油圧ショベルがホッパへ投入した合計回数Ｎａｌｌが５になるまでは、時間当たりの土砂量は計算されずに、積算回数ｎが５以隆から１増すごとに時間当たりの土砂量Ｗｃが計算される。
【０１６０】
また、ある回数毎に時間当たりの土砂量Ｖｃを表示させることもできる。この場合は、ステップ１１０のＮａｌｌ≧ｉを
Ｎａｌｌ＝ｉ＋ｉ×ｓ
とし、ｓは初期値が０で、Ｖｃを計算する度に１を加算する。
【０１６１】
例えば、過去５回毎に表示させたい場合は、５回目と１０回目と１５回目という具合に時間当たりの土砂量（揚土サイクル）Ｖｃを計算する。
【０１６２】
次に、ステップ１１２において各種作業量を表示する。図１８の揚土状況画面５１の土量表示部５１２にＷｈ１／Ｃｄを表示する。また、揚土回数表示部５１３に現在のＢｎ番目のバージ船におけるバージ船毎の回数ＣＮ１（Ｂｎ）を表示し、そして、積算土量表示部５１４に、現在のＢｎ番目のバージ船におけるバージ船毎の土砂量Ｖｂ１（ｂｎ）を表示する。また、時間当たりの土砂量（揚土サイクル）Ｖｃが更新されていれば、それを揚土サイクル表示部５１５に表示する。
【０１６３】
次に、ステップ１１３において、土量管理装置２７の通信制御部２７７で時々刻々と変化するバケット内部の荷重Ｗｒ１を受信しているか否かを判定する。受信していない場合は、ステップ１１５に進む。受信した場合は、揚土状況画面５１の荷重状態表示部５１１に表示してステップ１１５に進む。
【０１６４】
次に、ステップ１１５において、計測終了信号ＥがＯＮか否かを判定する。
【０１６５】
ここで、ＯＮである場合（計測終了ボタンを管理者が押した場合）には、ステップ１１６において、現在のＢｎ番目のバージ船における作業の終了時刻Ｔｅｎｄ（Ｂｎ）を現在時刻に設定する。次に、ステップ１１７においてデータ停止信号Ｃｅｎｄを土量管理装置２７の通信制御部２２７を使って荷重計測装置本体１９に送る。荷重計測装置本体１９は、データ要求信号Ｃｅｎｄを受信すると管理装置２７へのデータの送信を終了する。
【０１６６】
次に、ステップ１１８においてバージ船毎の作業時間Ｔｓｅ（Ｂｎ）と日毎の作業時間の累計Ｔｗｏｒｋを計算する。それぞれの式は以下のとおりである。
【０１６７】
Ｔｓｅ（Ｂｎ）＝Ｔｅｎｄ（Ｂｎ）−Ｔｓｔａｒｔ（Ｂｎ）
Ｔｗｏｒｋ＝Ｔｗｏｒｋ＋Ｔｓｅ（Ｂｎ）
ステップ１１８の計算が終了すると、ステップ１１９において、今回の隻数Ｂｎを本日の履歴画面５３の隻数表示部５３１に、最初に１番目のバージ船から土砂をホッパへ投入する作業を開始した時の作業開始時間Ｔｓｔａｒｔ（１）を開始時刻表示部５３２に、最後にＢｎ番目のバージ船から土砂をホッパへ投入する作業を終了した時の作業終了時間Ｔｅｎｄ（Ｂｎ）を終了時刻表示部５３３に、そして、日毎の作業時間の累積Ｔｗｏｒｋを作業時間表示部５３４に、日毎の積算回数ＣＮ１ｔを揚土回数表示部５３５に、日毎の総量Ｖ１ｔを積算土量表示部５３６に表示する。また、日報画面５４のタイムテーブル５４１上にＴｓｔａｒｔ（Ｂｎ）とＴｅｎｄ（Ｂｎ）を結ぶバーを表示する。
【０１６８】
次にステップ１２０において、バージ船当たりのデータとして、今回のバージ船の開始時刻Ｔｓｔａｒｔ（Ｂｎ）、終了時刻Ｔｅｎｄ（Ｂｎ）、作業時間Ｔｓｅ（Ｂｎ）、土砂量Ｖｂ１（Ｂｎ）、積算回数ＣＮ１（Ｂｎ）をプリンタ２９に出力する。
【０１６９】
次に、ステップ１２１で印刷信号ＰがＯＮか否かを判定する。印刷信号ＰがＯＮの場合（管理者が印刷ボタンを押した時）は、ステップ１２２において、日報がプリンタ２９より出力される。
【０１７０】
次に、ステップ１２３で、プログラム終了信号ＰＥがＯＮか否かが判定され、ステップ１２４でプログラムが終了し自動的に電源が切られる。プログラム終了信号ＰＥがＯＮでない場合は、ステップ１０２からの処理を繰り返す。
【０１７１】
次に、２台の油圧ショベルによって移送された土砂の量を体積で管理する場合の処理を図１９から図２２を用いて説明する。
【０１７２】
図２２は表示装置２８に表示される表示画面である。
【０１７３】
同図に示される表示画面６０の表示項目は、バージ船毎の２台の油圧ショベルの作業量を示す揚土状況画面６１、日付と現在時刻を表示する日付時刻画面６２、日毎の作業量を示す履歴画面６３、作業履歴をバーで示す日報画面６４、比重設定画面６５からなる５つの画面と、計測開始ボタン３５、計測終了ボタン３６、印刷ボタン３７、プログラム終了ボタン３８、比重設定ボタン３９の５つのボタンから構成される。
【０１７４】
揚土状況画面６１には、１号機の時々刻々と変化するバケット内部の荷重Ｗｒ１を示す荷重状態表示部６１１ａと２号機の時々刻々と変化するバケット内部の荷重Ｗｒ２を示す荷重状態表示部６１１ｂと、１号機がホッパへ投入した土砂の体積Ｖｈ１を表示する土量表示部６１２ａと２号機がホッパへ投入した土砂の体積Ｖｈ２を表示する土量表示部６１２ｂと、バージ船毎の１号機の回数ＣＮ１（（Ｂｎ）を表示する揚土回数表示部６１３ａとバージ船毎の２号機の回数ＣＮ２（Ｂｎ）を表示する揚Ｖ土量回数表示部６１３ｂと、バージ船毎の１号機の総量Ｖｂ１（Ｂｎ）を表示する積算土量表示部６１４ａとバージ船毎の２号時の総量Ｖｂ２（Ｂｎ）を表示する積算土量表示部６１４ｂと、時間当たりの土砂量Ｖｃを表示するサイクル表示部６１５とがある。
【０１７５】
さらに、揚土状況画面６１には、バージ船毎の１号機と２号機の合計回数Ｎａｌｌを表示する揚土回数表示部６１６とバージ船毎の１号機と２号機の合計総量
【０１７６】
【数９】

【０１７７】
を表示する積算土量表示部６１７がある。
【０１７８】
次に日付画面６２は図１８に示す日付画面５２と同一である。また、履歴画面６４は、隻数Ｂｎを表示する隻数表示部６３１と、１隻目のバージ船の作業開始時刻Ｔｓｔａｒｔ（１）を表示する開始時刻表示部６３２と、最後のバージ船の作業終了時刻Ｔｅｎｄ（Ｂｎ）を表示する終了時刻表示部６３３と、日毎の作業時間Ｔｗｏｒｋを示す作業時間表示部６３４と、日毎の１号機と２号機の合計回数（ＣＮ１ｔ＋ＣＮ２ｔ）を表示する揚土回数表示部６３５と、日毎の１号機と２号機の土砂の総量（Ｖ１ｔ＋Ｖ２ｔ）を表示する積算土量表示部６３６で構成される。この画面は計測終了ボタン３６が押される毎に更新される画面である。
【０１７９】
次に、日報画面６４にはタイムテーブル６４１とバージ船毎の作業時間Ｔｓｅ（Ｂｎ）を表示するバー６４２がある。このバーはＢｎ番目のバージ船毎の計測開始時刻Ｔｓｔａｒｔ（Ｂｎ）と計測終Ｔ時刻Ｔｅｎｄ（Ｂｎ）を結ぶ。
【０１８０】
比重設定画面６５は、図１８に示す比重設定画面５５と同一である。
【０１８１】
次に、２台の油圧ショベルを使用する場合の土量管理装置２７における土量管理の処理手順を図１９から図２１に示すフローチャートを用いて説明する。
【０１８２】
図１９のスタートプログラムにおいて、ここでは、油圧ショベルが２台であるので、台数Ｎは２であり、１号機を示すｊを１とし２号機を示すｊを２とする。
【０１８３】
図２の土量管理装置２７に電源が入るとスタートプログラム（２）が実行される。ステップ１００において、作業量管理プログラムで使用する各種パラメータを初期化する。バージ船の隻数Ｂｎとバージ船毎の合計回数がまず０に設定される。続いて、日毎の１号機がホッパへ土砂を投入した積算回数ＣＮ１ｔと総量Ｖ１ｔと２号機がホッパへ土砂を投入した積算回数ＣＮ２ｔと総量Ｖ２ｔが０に設定される。但し、前回電源を切った時と今回電源を入れた時で日付が変わっていなければ、Ｂｎ、ＣＮ１ｔ、Ｖ１ｔ、ＣＮ２ｔ、Ｖ２ｔはそれぞれ０とせず、前回の値のままにしておく。
【０１８４】
次に、油圧ショベルがホッパへ投入する時間当たりの土砂量（揚土サイクル）Ｖｃを０に設定する。さらに作業時間の累計Ｔｗｏｒｋが０に設定される。このＴｗｏｒｋは、前回電源を切った時と今回電源を入れた時とで日付が変わっていなければ、初期化しない。
【０１８５】
最後にステップ１０１において、時間当たりの土砂量を計算すための係数ｉを所定の数に設定する。例えば、過去５回の投入の時間当たりの土砂量を計算する場合は、ｉを５と設定する。
【０１８６】
次に、土砂の体積を計算するための比重Ｃｄを所定の値にセットして、スタートプログラム（２）が終了する。スタートプログラム（２）が終了すると作業管理プログラム（２）が起動する。
【０１８７】
図２０および図２１に示すフローチャートを用いて作業管理プログラム（２）を説明する。
【０１８８】
はじめに、ステップ１０２で、計測開始信号ＳがＯＮか否かを判定する。ここで、ＯＮである場合（管理者が計測開始ボタンを押したとき）には、ステップ１０３において、バージ船の隻数Ｂｎに１を加えて、バージ船毎の合計回数Ｎａｌｌを０とする。次にステップ１０４において、Ｂｎ番目のバージ船の計測開始時刻Ｔｓｔａｒｔ（Ｂｎ）を現在の時刻Ｔｎｏｗに設定する。次に、ステップ１０４ではデータ要求信号Ｃｓｔａｒｔを作成し、土量管理装置２７の通信制御部２７７を使って荷重計測装置本体１９に送る。
【０１８９】
ステップ１０６において、通信制御部２７７が１号機の土砂量Ｗｈ１とバケットダンプ操作開始時間Ｔｈ１、または２号機の土砂量Ｗｈ２とバケットダンプ操作開始時間Ｔｈ２を荷重計測装置本体１９から受信したか否かを判定する。いずれの号機のデータをも受信していなければ、ステップ１１３に進む。１号機のデータを受信していれば、次のステップ１０７においてバージ船毎の合計回数Ｎａｌｌに１を加算し、土砂量Ｗｈ１を比重Ｃｄで割って体積にし、Ｖａｌｌ（Ｎａｌｌ）に代入し、投入時間としてバケットダンプ操作開始時間Ｔｈ１をＴａｌｌ（Ｎａｌｌ）に代入する。また、２号機のデータを受信していれば、ステップ１０７において同じくバージ船毎の合計回数Ｎａｌｌに１を加算し、土砂量Ｗｈ２を比重Ｃｄで割って体積にしでＶａｌｌ（Ｎａｌｌ）に代入し、投入時間としてバケットダンプ操作開始時間Ｔｈ２をＴａｌｌ（Ｎａｌｌ）に代入する。
【０１９０】
次に、ステップ１０６においで１号機のデータを受信していれば、ステップ１０８においてバージ船毎のホッパへ投入した土砂量Ｖｂ１（Ｂｎ）と回数ＣＮ１（Ｂｎ）を計算する。Ｖｂ１（Ｂｎ）とＣＮ１（Ｂｎ）は次式で与えられる。
【０１９１】
Ｖｂ１（Ｂｎ）＝Ｖｂ１（Ｂｎ）＋Ｗｈ１／Ｃｄ
ＣＮ１（Ｂｎ）＝ＣＮ１（Ｂｎ）＋１
また、２号機のデータを受信していれば、ステップ１０８においてバージ船毎の２号機がホッパヘ投入した土砂量Ｖｂ２（Ｂｎ）と回数ＣＮ２（Ｂｎ）を計算する。Ｖｂ２（Ｂｎ）とＣＮ２（Ｂｎ）は次式で与えられる。
【０１９２】
Ｖｂ２（Ｂｎ）＝Ｖｂ２（Ｂｎ）＋Ｗｈ２／Ｃｄ
ＣＮ２（Ｂｎ）＝ＣＮ２（Ｂｎ）＋１
次に、ステップ１０９において、１号機の日毎の積算回数ＣＮ１ｔと総量Ｖ１ｔを求める。式は以下の通りである。
【０１９３】
ＣＮ１ｔ＝ＣＮ１ｔ＋１
Ｖ１ｔ＝Ｖ１ｔ＋Ｗｈ ｌ／Ｃｄ
また、２号機の日毎の積算回数ＣＮ２ｔと総量Ｖ２ｔを求める。式は以下の通りである。
【０１９４】
ＣＮ２ｔ＝ＣＮ２ｔ＋１
Ｖ２ｔ＝Ｖ２ｔ＋Ｗｈ２／Ｃｄ
続いて、ステップ１１０において、バージ船毎の１号機と２号機の合計回数Ｎａｌｌが時間当たりの土砂量を計算すための揚土サイクル係数ｉよりも等しいもしくは大きいか否かを判定する。小さければステップ１１２に進む。等しいもしくは大きければ、ステップ７９において時間当たりの土砂量（揚土サイクル）Ｖｃを計算する。Ｖｃは次式で与えられる。
【０１９５】
【数１０】

【０１９６】
ここで、例えば、５回の平均土砂量を使って時間当たりの土砂量（揚土サイクル）Ｖｃを求める場合は、バージ船毎の油圧ショベルがホッパへ投入した合計回数Ｎａｌｌが５になるまでは、時間当たりの土砂量は計算されずに、積算回数ｎが５以降から１増す毎に時間当たりの土砂量Ｖｃが計算される。
【０１９７】
また、ある回数毎に時間当たりの土砂量Ｖｃを表示させることもできる。この場合は、ステップ１１０のＮａｌｌ≧ｉを
Ｎａｌｌ＝ｉ＋ｉ×ｓ
とし、ｓは初期値が０で、Ｖｃを計算する度に１を加算する。
【０１９８】
例えば、過去５回毎に表示させたい場合は、５回目と１０回目と１５回目という具合に時間当たりの土砂量（揚土サイクル）Ｖｃを計算する。
【０１９９】
次に、ステップ１１２において各種作業量を表示する。ステップ１０６において１号機のデータを受信していれば、図２２の揚土状況画面６１の土量表示部６１２ａにＷｈ１／Ｃｄを表示する。また、揚土回数表示部６１３ａに１号機がＢｎ番目のバージ船から土砂を掬い出した回数ＣＮ１（Ｂｎ）を表示し、積算土量表示部６１４ａに１号機がＢｎ番目のバージ船から土砂を掬い出した量Ｖｂ１（Ｂｎ）を表示する。また、ステップ１０６において２号機のデータを受信していれば、揚土状況画面６１の土量表示部６１２ｂにＷｈ２／Ｃｄを表示する。また、揚土回数表示部６１３ｂに２号機がＢｎ番目のバージ船から土砂を掬い出した回数ＣＮ２（Ｂｎ）を表示し、積算土量表示部６１４ｂに２号機がＢｎ番目のバージ船から土砂を掬い出した量Ｖｂ２（Ｂｎ）を表示する。
【０２００】
また、ステップ１０６において、１号機もしくは２号機のデータを受信していれば、合計回数Ｎａｌｌを揚土回数表示部６１６に表示し、合計総量
【０２０１】
【数１１】

【０２０２】
を積算土量表示部６１７に表示する。
【０２０３】
さらに、１時間当たりの土砂量（揚土サイクル）Ｖｃが更新されていれば、それを揚土サイクル表示部６１５に表示する。
【０２０４】
次に、ステップ１１３において、土量管理装置２７の運信制御部２７７で１号機または２号機の時々刻々と変化するバケット内部の荷重Ｗｒ１またはＷｒ２を受信しているか否かを判定する。いづれも受信していない場合は、ステップ１１５に進む。１号機の荷重Ｗｒ１を受信した場合は、揚土状況画面６１の荷重状態表示部６１１ａに表示し、２号機の荷重Ｗｒ２を受信した場合は、荷重状態表示部６１１ｂに表示する。そして、ステップ１１５に進む。
【０２０５】
次に、ステップ１１５において、計測終了信号ＥがＯＮか否かを判定する。
【０２０６】
ここで、ＯＮである場合（計測終了ボタンを管理者が押した場合）には、ステップ１１６において、Ｂｎ番目のバージ船の終了時刻Ｔｅｎｄ（Ｂｎ）を現在時刻に設定する。次に、ステップ１１７においてデータ停止信号Ｃｅｎｄを土量管理装置２７の通信制御部２２７を使って荷重計測装置本体１９に送る。
【０２０７】
荷重計測装置本体１９は、データ要求信号Ｃｅｎｄを受信すると管理装置２７へのデータの送信を終了する。
【０２０８】
次に、ステップ１１８において、Ｂｎ番目のバージ船毎の作業時間Ｔｓｅ（Ｂｎ）と日毎の作業時間の累計Ｔｗｏｒｋを計算する。それぞれの式は以下の通りである。
【０２０９】
Ｔｓｅ（Ｂｎ）＝Ｔｅｎｄ（Ｂｎ）−Ｔｓｔａｒｔ（Ｂｎ）
Ｔｗｏｒｋ＝Ｔｗｏｒｋ＋Ｔｓｅ（Ｂｎ）
ステップ１１８の計算が終了すると、ステップ１１９において、隻数Ｂｎを本日の履歴画面６３の隻数表示部６３１に、１番目のバージ船から土砂をホッパへ投入する作業を開始した時の作業開始時間Ｔｓｔａｒｔ（１）を開始時刻表示部６３２に、最後のＢｎ番目のバージ船から土砂をホッパへ投入する作業を終了した時の作業終了時間Ｔｅｎｄ（Ｂｎ）を終了時刻表示部６３３に、そして、日毎の作業時間の累積Ｔｗｏｒｋを作業時間表示部６３４に、１号機と２号機の日毎の積算回数の和（ＣＮ１ｔ＋ＣＮ２ｔ）を揚土回数表示部６３５に、１号機と２号機の日毎の総量の和（ｖ１ｔ＋ｖ２ｔ）を積算土量表示部６３６に表示する。
【０２１０】
また、日報画面６４のタイムテーブル６４１上にＴｓｔａｒｔ（Ｂｎ）とＴｅｎｄ（Ｂｎ）を結ぶバーを表示する。
【０２１１】
次に、ステップ１２０において、バージ船当たりのデータとして、Ｂｎ番目のバージ船の開始時刻Ｔｓｔａｒｔ（Ｂｎ）と終了時刻Ｔｅｎｄ（Ｂｎ）と作業時間Ｔｓｅ（Ｂｎ）、１号機のＢｎ番目のバージ船の土砂量Ｖｂ１（Ｂｎ）と２号機のＢｎ番目のバージ船の土砂量Ｖｂ２（Ｂｎ）、１号機と２号機がバージ船から土砂を掬い出した合計回数Ｎａｌｌと合計総量
【０２１２】
【数１２】

【０２１３】
をプリンタ２９に出力する。
【０２１４】
次に、ステップｌ２１で印刷信号ＰがＯＮか否かを判定する。印刷信号ＰがＯｎの場合（管理者が印刷ボタンを押した時）は、ステップ１２２において、日報がプリンタ２９により出力される。
【０２１５】
次に、ステップ１２３で、プログラム終了信号ＰＥがＯＮか否かが判定され、ステップ１２４で、プログラムが終了すると自動的に電源が切られる。プログラム終了信号ＰＥがＯＮでない場合は、ステップ１０２からの処理を繰り返す。
【０２１６】
以上説明したように、本実施形態では、２つの作業形態に応じて、２種類の表示画面を示したが、いずれの場合も、作業開始と終了時にボタンを押すだけで、油圧ショベルがホッパへ積込んだ土砂の体積などを自動的に計算して、表示されるので管理者の作業管理負担を大幅に軽減することができる。また、バージ船毎の履歴や日報が出力されるので、従来のように逐次管理者が記録する必要がなくなり、管理者の作業負担を軽減することができる。
【０２１７】
【発明の効果】
以上のごとく、本発明によれば、油圧ショベルが運搬船から加工場所へ投入する被加工物の体積を自動的に計算して表示することができるので、管理者は容易にかつ高精度に各種の作業量を把握することができる。また、各運搬船毎の作業量も管理することができるとともに、作業の履歴や計測状態を迅速明確に把握することができる。
【図面の簡単な説明】
【図１】揚土船上で稼働する油圧ショベルの作業形態の一例を示す図である。
【図２】 本発明の発明者らの考案による油圧ショベルの荷重計測装置および管理装置を示すブロック図である。
【図３】図２に示す荷重計測装置本体１９の構成図である。
【図４】図２に示す土量管理装置２７の構成図である。
【図５】図２に示す荷重計測装置本体１９の演算処理時に使用され前もって設定されるブーム境界角度αを説明する図である。
【図６】図２に示す荷重計測装置本体１９に入力する各種信号の波形およびその内部で演算処理された各種信号の波形を示す図である。
【図７】図２に示す荷重計測装置本体１９の位置教示プログラム１９５ｃの処理手順を示すフローチャートである。
【図８】図２に示す荷重計測装置本体１９に格納される作業検出プログラム（１）の処理手順を示すフローチャートである。
【図９】図２に示す荷重計測装置本体１９に格納される作業検出プログラム（１）の処理手順を示すフローチャートである。
【図１０】図２示す荷重計測装置本体１９の旋回境界時間（Ｔｓｗｒｅｆ）を設定するために使用される旋回境界時間教示プログラムの処理手順を示すフローチャートである。
【図１１】図２に示す荷重計測装置本体１９に格納される作業検出プログラム（２）の処理手順を示すフローチャートである。
【図１２】図２に示す荷重計測装置本体１９に格納される作業検出プログラム（２）の処理手順を示すフローチャートである。
【図１３】図２に示す表示装置２８に表示される表示画面である。
【図１４】図２に示す土量管理装置２７のスタートプログラム（１）の処理手順を示すフローチャートである。
【図１５】図２に示す土量管理装置２７の作業管理プログラム（１）の処理手順を示すフローチャートである。
【図１６】図２に示す土量管理装置２７の作業管理プログラム（１）の処理手順を示すフローチャートである。
【図１７】 図２に示す表示装置２８に表示される表示画面である。
【図１８】 本発明の一実施形態に備えられる表示装置２８に表示される表示画面である。
【図１９】図２に示す土量管理装置２７のスタートプログラム（２）の処理手順を示すフローチャートである。
【図２０】図２に示す作業管理装置２７の作業管理プログラム（２）の処理手順を示すフローチャートである。
【図２１】図２に示す作業管理装置２７の作業管理プログラム（２）の処理手順を示すフローチャートである。
【図２２】 図２に示す表示装置２８に表示される表示画面である。
【符号の説明】
１ 油圧ショベル
２ 揚土船
３ バージ船
４ ホッパ
５ 圧送ポンプ
６ 管理部所
１１ ブーム
１２ ブームシリンダ
１２１ ボトム室
１２２ ロッド室
１２３，１２４ 圧力センサ
１３ バケット
１７ バケット操作レバー
１８ 旋回操作レバー
１９ 荷重計測装置本体
１９５ｂ 作業検出プログラム
２０ ブーム角度センサ
２１ 教示開始ボタン
２４，２６ 無線機
２５ 管理装置
２７ 土量管理装置
２７５ａ スタートプログラム
２７５ｂ 作業管理プログラム
２８ 表示装置
３５ 計測開始ボタン
３６ 計測終了ボタン
３７ 印刷ボタン
３８ プログラム終了ボタン[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a work amount display device for a hydraulic excavator, and in particular, a work amount display device for a hydraulic excavator that is placed on a landing ship and loads a workpiece such as earth and sand that has been transported into a processing place such as a hopper. About.
[0002]
[Prior art]
FIG. 1 is a diagram illustrating an example of a working form of a hydraulic excavator operating on a landing ship.
[0003]
In the figure, 11 is a boom of the excavator 1, 12 is a boom cylinder, and 13 is a bucket. As shown in the figure, a landing ship 2 that operates at sea includes at least one hydraulic excavator 1, a hopper 4 into which earth and sand is introduced by the hydraulic excavator 1, a pressure pump 5 that pumps the introduced earth and sand, and management. It is composed of the department 6. A barge ship 3 carrying the earth and sand is placed on the unloading ship 2, and the excavator 1 scoops up the earth and sand from the barge ship 3, turns and puts it into the hopper 4. When a predetermined amount of earth and sand is introduced into the hopper 4, the hopper 4 is mixed with a solidifying material such as cement in the hopper 4, and is pumped by a pumping pump 5 to a planned landfill site. At this time, it is necessary to measure the amount of earth and sand in order to input an appropriate amount of solidifying material to the hopper 4 with respect to the amount of earth and sand introduced into the hopper 4.
[0004]
Conventionally, the amount of earth and sand thrown into the hopper by a hydraulic excavator was measured visually by an administrator on the unloading ship to determine the amount of solidified material to be put into the hopper. Also, the amount of work such as the amount of excavator thrown into the hopper and the working time of throwing the earth and sand into the hopper were recorded on a predetermined paper by the manager on the landing vessel.
[0005]
[Problems to be solved by the invention]
However, since the manager on the unloading vessel visually measures the amount of excavation by the excavator and adjusts the amount of solidified material, it is necessary to always calculate the amount of surplus per certain time, which is a burden on the administrator. It was. In addition, the amount of earth and sand measured by visual inspection is also inaccurate, and the administrator is also burdened with recording the amount of work such as the amount of hydraulic excavator thrown into the hopper and the amount of earth and sand covered with the earth and sand on the prescribed paper. Met.
[0006]
The purpose of the present invention is to automatically load the amount of work such as the amount of sand and the amount of work required for the loading by putting a work such as earth and sand carried by a carrier ship into a hopper or other processing place by a hydraulic excavator. To provide a work load display device for a hydraulic excavator that reduces the burden on the administrator by disclosing to the administrator the amount of earth and sand input and work history required to adjust the input of the solidified material. It is in.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the present invention employs the following means.
[0014]
luck In the work amount display device for a hydraulic excavator that displays the work amount of the work to be carried by the excavator on the unloading ship to the scooping place by the hydraulic excavator on the unloading ship, the work amount display device includes at least each work amount display device. The excavation status screen that displays the work volume of one or more excavators, the date display screen that displays the date and current time, the history screen that displays the work volume of all excavators per day, and the hydraulic pressure for each carrier A daily work report screen that displays the amount of work proportional to the work time of the excavator; A specific gravity display screen on which a specific gravity display section for displaying the specific gravity of the workpiece and a specific gravity value setting button for setting a specific gravity value; Is displayed on one screen.
[0015]
Claims 1 In the work amount display device for the hydraulic excavator, the hydraulic excavator starts a measurement of a work for putting the workpiece into the machining location, a measurement end button for ending the work measurement, and a daily A daily report output button for printing the work amount of the hydraulic excavator and a program end button for ending the processing program for measuring the work amount are displayed on one screen.
[0016]
Claims 1 Or claims 2 In the hydraulic excavator work amount display device described in 1), the excavation status screen displays the load inside the bucket of the excavator that changes from moment to moment, and the volume of the work piece per cup that the excavator puts into the machining location. In addition, the number of times the workpiece is put into the machining location of the hydraulic excavator and the integrated volume, and the volume that is thrown in for a predetermined time are displayed.
[0017]
Claims 1 Or claims 2 In the work amount display device for a hydraulic excavator described in 1), when two or more hydraulic excavators are installed, the earthing status screen displays the load inside the bucket of the hydraulic excavator that changes from moment to moment for each hydraulic excavator. The volume of the workpiece that the excavator for each hydraulic excavator put into the machining location, the number of times the workpiece is thrown into the machining location for each hydraulic excavator and the total volume, and all the hydraulic excavators The total number of insertions and the total volume for each day of the input are displayed.
[0018]
Claims 1 Or claims 2 In the work amount display device according to claim 1, the history image includes the number of carrier ships that have transported the workpiece, the start time when the first carrier ship is started, and the completion of the last carrier ship. The end time, the all day work time, the total number of times that the workpiece has been input to the processing location, and the total volume are displayed.
[0020]
Also, Contract Claim 2 In the work amount display device for a hydraulic excavator described above, the measurement start button, the measurement end button, and the daily report output button are configured so that display colors are reversed when they are turned on.
[0021]
Also, Contract Claim 2 In the work amount display device for a hydraulic excavator described above, when the program end button is turned on, the power of the device is turned off.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described. Figure It explains using.
[0023]
Figure 2 By the inventors It is a block diagram which shows the load measuring device and management apparatus of a hydraulic shovel. In addition, the same code | symbol is attached | subjected about the part same as the part shown in FIG. 1, and description is abbreviate | omitted.
[0024]
In the figure, 121 is the bottom chamber of the boom cylinder 12, 122 is the rod chamber of the boom cylinder 12, 123 is a pressure sensor that measures the pressure oil pressure in the bottom chamber 121, and 124 is the pressure oil pressure in the rod chamber 122. 14 is a hydraulic pump of the excavator 1, 15 is a hydraulic oil tank, and 16 is a control valve interposed between the hydraulic pump 14 and the boom cylinder 12.
[0025]
Reference numeral 17 denotes a bucket operation lever, 18 denotes a turning operation lever, 171 denotes a pressure switch for detecting a pilot pressure when the bucket is operated in the dump direction, and 181 denotes a pilot pressure when the excavator 1 is operated to turn left. A pressure switch for detecting 182 is a pressure switch for detecting a pilot pressure when a right turn operation is performed.
Note that pressure sensors 171, 181 and 182 can be substituted. In this case, the load measuring device main body 19 has a pressure threshold for detecting the operation of the operation lever, and the presence or absence of the operation is determined by comparing with the measured pressure. Moreover, not only a pressure switch and a pressure sensor, but also an electrical signal may be used when a turning operation or bucket dumping operation is performed with an electric lever. Further, a sensor for detecting a turning angle or a bucket turning angle may be attached, and the output thereof may be used as a right turn signal, a left turn signal, and a bucket dump signal. Moreover, you may use the output of the stroke sensor which measures the stroke of a bucket cylinder as a bucket dump signal.
[0026]
19 is a load measuring device main body that calculates and measures the earth and sand collected by the bucket 13 based on various input data, 20 is a rotation angle sensor that measures the rotation angle of the pin at the base of the boom 11, and 21 is A teaching start button for starting teaching, 22 a boom boundary angle teaching button for teaching the boom boundary angle of the boom 11, and 23 a turning time teaching button for teaching the turning time.
[0027]
The load measuring device body 19 includes a right turn signal S1 of the pressure switch 182, a left turn signal S2 of the pressure switch 181, a bucket damp signal S3 of the pressure switch 171, a pressure signal S4 from the pressure sensor 123, and a pressure sensor 124. Pressure signal S5, angle sensor signal S6 from rotation angle sensor 20, teaching start signal S7 from teaching start button 21, teaching command signal S8 from boom boundary angle teaching button 22, teaching command signal from turning boundary time teaching button 23 Each signal of S9 is input, and the work determination and the load at that time are calculated.
[0028]
Data such as a load calculated by the load measuring device main body 19 is transmitted via a wireless device 24 to a management unit that is installed at another location and includes a wireless device 26 and a management device 25. Data received by the wireless device 26 is taken into the soil volume management device 27, processed by the work management program, and output to the display device 28 and the printer 29. The soil volume management device 27 includes a measurement start button 35 for starting the measurement of the amount of sediment by the load measuring device body 19, a measurement end button 36 for ending the measurement, a print button 37 for printing a daily report, and work management. And a program end button 38 for ending the program. In addition, a keyboard 39 for inputting the number of the barge 3 is connected to the soil volume management device 27.
[0029]
FIG. 3 is a configuration diagram of the load measuring device main body 19 shown in FIG.
[0030]
The load measuring device main body 19 is mainly constituted by a computer, 191 is an input interface having an A / D converter and inputs various signals, 192 is a central processing unit (CPU) for executing various operations and controls, and 193 is a time signal. 194 is a random access memory (RAM) in which results of computation and control are stored, 195 is a read only memory (ROM) in which various processing programs of the CPU 192 are stored, and 196 is from the management device 25 It is a communication control unit that receives and transmits load data and the like. The ROM 195 stores a start program 195a, a work detection program 195b, a position teaching program 195c, a turning boundary time teaching program 195d, and a real-time load calculation program 195e, which will be described in detail later. The work detection program 195b and the real-time load calculation program 195e are activated when the communication control unit 196 receives a data request signal, and are terminated when a data stop signal is received.
[0031]
As the work detection program 195b, as will be described in detail later, either the work detection program (1) or the work detection program (2) is stored and the work detection process is executed. The turning boundary time teaching program 195d is used when the work detection program (1) is used.
[0032]
FIG. 4 is a block diagram of the soil volume management device 27 shown in FIG.
[0033]
The soil volume management device 27 is configured by a computer, 271 is an input interface for inputting signals from a measurement start button 35, a measurement end button 36, a print button 37, and a program end button 38, and 272 is various calculations and controls. Is a central processing unit (CPU), 273 is a timer for outputting a time signal, 274 is a random access memory (RAM) in which results of calculation and control are stored, and 275 is a processing program for the CPU 272. A read only memory (ROM) 276 is an output interface for outputting data to the display device 28 and the printer 29 for displaying various work amounts obtained by processing load data of earth and sand. Reference numeral 277 denotes a communication control unit that transmits a data request signal or the like to the load measuring device body 19 and receives load data. The ROM 275 stores a start program 275a and a work amount management program 275b described later.
[0034]
As will be described later, the display screen displayed on the display device 28 is a screen for managing the amount of earth and sand transferred by one or more hydraulic excavators in tonnage, and one or more hydraulic excavators are transferred. There are four types of items including a screen for managing the amount of earth and sand in volume, and there are a start program 275a and a work management program 275b according to each screen. A start program 275a for managing the amount of earth and sand transferred by one hydraulic excavator in tonnage is referred to as a start program (1), and an operation management program 275b is referred to as an operation management program (1). Further, when the volume of earth and sand transferred by one hydraulic excavator is managed by volume, they are designated as a start program (2) and a work management program (2), respectively.
[0035]
FIG. 5 is a diagram for explaining the boom boundary angle α that is used and set in advance during the calculation process of the load measuring device main body 19.
[0036]
The boom boundary angle α is set to a predetermined angle in the lower direction from the horizontal position of the excavator 1, and is set based on the angle sensor signal S6 detected from the boom angle sensor 20 by a teaching process described later. The load measuring device body 19 detects an operation in which the excavator 1 scoops earth and sand from the barge 3 and puts it into the hopper 4 based on the set boom boundary angle α. That is, if the boom boundary angle α passes from above, the bucket 13 goes out from the barge 3 and if the boom boundary angle α passes from below and passes the boom boundary angle α, the bucket containing earth and sand. It can be determined that the work 13 is moved to the hopper 4.
[0037]
FIG. 6 is a diagram illustrating waveforms of various signals input to the load measuring device body 19 and waveforms of various signals that are arithmetically processed therein.
[0038]
a is a boom boundary angle detection signal detected when the boom 11 crosses the boom boundary angle α by comparing the set boom boundary angle α with the angle sensor signal S6 detected by the boom angle sensor 20, ΔPrb Is the pressure difference between the bottom chamber 121 of the boom cylinder 12 and the rod chamber 122. Note that the pressure in the bottom chamber 121 may be used instead of the pressure in the bottom chamber 121 of the boom cylinder 12 and the pressure difference in the rod chamber 122 for the differential pressure ΔPrb.
[0039]
In addition The When the output of the boom angle sensor 20 of the boom 11 passes the boom boundary angle α, it is turned on to output the boom boundary angle detection signal a, and the output of the boom angle sensor 20 passes again through the boom boundary, from the boom boundary angle α. It is designed to turn off when it is low.
[0040]
Further, as shown in the figure, when the boom boundary angle detection signal a is turned OFF, since there is no earth and sand in the bucket 13, ΔPrb indicates a small value. When the boom boundary angle detection signal a is detected again, the bucket 13 contains earth and sand and ΔPrb shows a large value. Further, when the boom boundary angle detection signal a is turned on, the right turn signal S1 is turned on and continues for a certain time. This can be regarded as turning to the hopper 4. If it is too short, it can be said that it is not an erroneous operation or a turning operation to the hopper 4. Next, when the bucket dump signal S3 is turned on, it indicates that the excavator 1 has put earth and sand into the hopper 4. Next, when the left turn signal S <b> 2 is turned on and continues for a certain time, this indicates that the turn from the hopper 4 to the barge 3. In this state, since the bucket 13 is empty, ΔPrb is a small value. That is, the pressure ΔPrb when the right turn signal S1 is detected and the pressure difference ΔPw between the pressure ΔPrb when the left turn signal S3 is detected is a certain differential pressure that actually becomes a pressure change due to sediment. The differential pressure ΔPrb immediately before the first bucket dumping operation is taken after the boundary angle detection signal is turned ON. By applying a pressure-weight conversion coefficient to this differential pressure ΔPrb, the load Wh of earth and sand can be detected.
[0041]
The above configuration According to the above, since the bucket dump position does not change so much and the posture does not change, correction does not have to be performed at the time of load measurement. However, the posture is calculated using the arm angle sensor or the bucket angle sensor and the load Wh is calculated. You may do.
[0042]
Next, the processing procedure of the position teaching program 195c of the load measuring device main body 19 will be described using the flowchart shown in FIG.
[0043]
This position teaching process is executed to teach the boom boundary angle and store it in the RAM 194 of the load measuring device main body 19.
[0044]
First, prior to the teaching process, when the operator of the excavator 1 starts the engine (or presses a dedicated button) to start the work of removing soil from the barge 3 to the hopper 4, a start program shown in FIG. 195a is executed. Various parameters are initialized by the start program 195a. For example, flag information such as detection flag Sr of right turn operation, left turn detection flag Sl, bucket dump detection flag Bd, signal S4 indicating that the boom boundary angle α has been passed, and signals such as S1, S2, S3, etc. The storage memory, boom cylinder pressure storage memory, and the like are initialized. At this time, the boom boundary angle α and the pressure-weight conversion coefficient are not initialized.
[0045]
Next, when an operator in the cab of the excavator 1 presses the teaching start button 21 to perform teaching processing, the signal S7 is input to the load measuring device main body 19, and the position teaching program 195c shown in FIG. 3 is started. The As shown in FIG. 5, the teaching process operates an operation lever (not shown) to lower the boom 12 toward the barge 3, and when the tip of the bucket 13 comes close to the barge 3, the boom shown in FIG. 2. The boundary teaching button 22 is pressed. In step 1 of FIG. 7, it is determined whether or not the boom boundary angle teaching button 22 has been pressed. When the button is pressed, in step 2, the signal S 6 detected by the boom angle sensor 20 at that time is sent to the load measuring device main body 19. The boom angle is inputted and stored as a boom boundary angle α. Next, in step 3, since the boom boundary angle α is set, the boom boundary setting flag “Au” is set to ON and the teaching is ended.
[0046]
Next, a processing procedure when the work detection program (1) is used as the work detection program 195b stored in the load measuring device body 19 will be described with reference to the flowcharts shown in FIGS.
[0047]
This work detection process is executed to calculate various loads of input data and measure the load Wh of the earth and sand transferred by the excavator.
[0048]
First, in step 11, various count values m and i, which will be described later, are initialized in addition to the turning measurement time Tsw. Next, in step 12, it is determined whether the boom boundary angle detection signal a has changed (rises) from OFF to ON. Here, at the timing when it is turned ON, as shown in step 13, in addition to the turning measurement time Tsw, the count values m and i are initialized. Next, in step 14, it is determined whether or not a right turn operation is being performed. When the operation is in progress, as shown in step 15, the measurement sampling time ΔTs is added to the turning measurement time Tsw. Then, in step 16, it compares with the turning boundary time Tswref set beforehand. The turning boundary time Tswref is the time during which the hydraulic excavator is turning from when the boom boundary angle detection signal “a” is turned on to immediately before the earth and sand are released. Here, if Tsw ≧ Tswref, the routine proceeds to step 17 where the turning passage time Tpass at that time is taken out from the timer 198 and stored in the RAM 194. If it is determined in step 14 that a right turn operation is not being performed, it is determined in step 18 whether a left turn operation is being performed. At this time, if the left turn operation is being performed, the measurement sampling time ΔTs is subtracted from the turn measurement time Tsw as shown in Step 19. By providing the processing of step 19, for example, when there is a release position in the right direction and the turning operation is performed in the left direction for some reason during the turning in the right direction, and the turning is performed in the right direction again, it is more accurate. The turning measurement time Tsw can be measured. Next, in step 20, it is determined whether there is a bucket dump operation. If there is a bucket operation, it is read from the timer 193 and stored in the RAM 194 as the bucket operation start time Tbkt (m) in step 21. Here, m represents the number of bucket operations, and the bucket dump operation in step 20 is performed in addition to the originally planned bucket dump operation (m = 3), for example, as shown in the bucket dump signal S3 in FIG. There may be a bucket operation dump operation (m = 1, 2) that should not be measured for work detection. Next, after the boom cylinder pressure immediately before the bucket dump operation start time Tbkt (m) is stored in step 22 (for example, the average boom cylinder pressure PRrbb for a predetermined time ΔT immediately before Tbkt), the count value m is set to 1 in step 23. Add. Next, in step 24, it is determined whether or not the boom boundary angle detection signal a has changed (turned down) from ON to OFF. If it has changed, the processing from step 25 is performed. Here, the bucket dump operation that occurs within the elapsed time from the time when the boom boundary angle detection signal a changes from OFF to ON until the time when the boom boundary angle detection signal a changes from OFF to ON is used for releasing the earth. It is determined whether it is a bucket dump operation. First, in step 25, for each bucket operation count m measured in step 20, which bucket operation is a bucket operation for releasing is searched. Here, i represents the count number used in the process for searching for a bucket dump for releasing, and for each bucket operation number m, the bucket dump operation start time Tbkt (m) stored in step 21 is step 17. It is determined whether or not it is equal to or greater than the turning passage time Tpass stored in step. If it is smaller, the predetermined bucket dump operation is not judged, and 1 is added to i in step 26 and the judgment is made again in step 25. If it is large here, for example, in the case of m = 3 in FIG. 5, it is determined that the bucket 13 is on the hopper 4 and is regarded as immediately before the earth is released. Therefore, in step 27, the average boom cylinder pressure ΔPRrbb of the predetermined time ΔT immediately before the bucket dump operation start time stored in step 22 is calculated, and the bucket dump posture for each earthing does not change so much, so pressure-weight conversion The value multiplied by the coefficient k is defined as the load Wh of earth and sand. Alternatively, an arm angle sensor, a bucket rotation angle, or a bucket cylinder stroke sensor may be prepared, and the load wh may be calculated by measuring the posture at the bucket earthing position. Subsequently, in step 28, the load Sh of earth and sand and the bucket dump operation start time Tbkt (m) are set as Th and transmitted to the communication control unit 196.
[0049]
Here, the processing procedure by the turning boundary time teaching program used for setting the turning boundary time (Tswref) will be described with reference to the flowchart shown in FIG.
[0050]
When the teaching start button 21 is operated by the operator of the hydraulic excavator, the turning boundary time teaching program 195d starts to be executed. First, in step 30, it is determined whether or not the turning boundary time teaching button 23 is ON. If ON, the turning time from the time when the boom angle passes the boom boundary angle α in step 31 to the time when the operator presses the turning boundary time teaching button 23 immediately before dumping the bucket is set as the turning boundary time (Tswref). Save to. According to this setting method, the turning boundary time is automatically set with a simple operation. In The turning boundary time can be easily adjusted even if the turning angle is changed and the turning angle to be thrown into the hopper 4 is changed after the soil has been sown.
[0051]
Next, the processing procedure when the work detection program (2) is used as the work detection program 195b stored in the load measuring device body 19 will be described with reference to the flowcharts shown in FIGS.
This work detection process is also executed to calculate various loads of input data and measure the load Wh of the earth and sand transferred by the excavator.
[0052]
First, in step 41, various count values h, i, j described later are initialized.
[0053]
Next, in step 42, it is determined whether or not there is a right turn operation. Here, it is assumed that the right turn operation is performed by the right turn operation for 2 seconds. Therefore, in step 43 and step 44, it is determined whether or not the count value h has reached a preset value K1. As shown in step 45, the difference between the pressure PRr (th) of the bottom chamber 21 of the boom cylinder 14 and the pressure PRb (th) of the rod chamber 22 is calculated for each count value h, and data is obtained as ΔPRrb (th). Is stored in the RAM 194. When the count value h is a predetermined value K1, that is, when 2 seconds have elapsed, the right turn detection flag Sr is set to 1 in S16.
[0054]
Next, at step 47, it is determined whether or not there is a left turn. As in the case of the right turn, in step 48 and step 49, it is determined whether or not the count value has reached a preset value K2. As shown in step 50, the difference between the pressure PLr (ti) of the bottom chamber 21 of the boom cylinder 14 and the pressure PLb (ti) of the rod chamber 22 is calculated for each count value i, and data is obtained as ΔPLrb (ti). Is stored in the RAM 194. When the count value i is a predetermined value K2, that is, when 2 seconds have elapsed, the left turn detection flag S1 is set to 1 in S51.
[0055]
Next, in step 52, it is determined whether or not there is a bucket operation. In step 53 and step 54, it is determined whether or not the count value has reached a preset value K3. Since the count value j is a predetermined value K3, here, the bucket dump operation is relatively fast, the operation for one second is regarded as having a bucket operation. When one second has elapsed, the bucket dump operation detection flag Bd becomes 1 in S55.
[0056]
Next, in S56, it is determined whether or not all of the right turn detection flag Sr, the left turn detection flag S1 and the bucket dump detection flag Bd are 1. If all the flags are 1, return to step 57, otherwise return to S42.
[0057]
If YES in step 56, the process proceeds to step 57 to determine the signal generation order. That is, when the flag is set to 1 in the order of the right turn signal S1 → bucket dump signal S3 → left turn signal S2 as shown in FIG. 6, the process proceeds to “A” in the flowchart shown in FIG. By performing the determination of step 57, it is possible to detect without error an operation of scooping and turning the excavator's earth and sand and transferring it to another place.
[0058]
Since the generation time of each operation read from the timer 193 is stored in the RAM 194, the generation order of the signals can be easily performed by comparing them. On the other hand, if the generation order does not match, the process proceeds to step 58 where all of the right turn detection flag Sr, the left turn detection flag Sl, and the bucket dump detection flag Bd are set to zero. In step 57, the order of generation of signals of right turn → bucket dump → left turn is determined. However, the order of generation of signals of left turn → bucket dump → right turn may be determined. In that case, the difference between the average value ΔPLrb and the average value ΔPRrb is obtained, and it is determined whether this difference is smaller than the predetermined value Pref.
[0059]
If the occurrence order matches, it is determined in step 59 whether the right turn or left turn operation end time is in the ON state of the boundary angle detection signal a. That is, it can be determined whether or not the bucket 13 is turning with the earth and sand in the bucket 13.
[0060]
If YES in step 59, it is determined in step 60 whether the boundary angle detection signal a has been turned off after the turning operation in the direction opposite to the first turning direction.
[0061]
If YES in step 60, the process proceeds to step 61, and the average value ΣΔPRrb (th) / K1 of ΔPRrb (th) detected during the right turn in step 45 and Δ detected during the left turn in step 50. The difference between PLrb (ti) and the average value ΣΔPLrb (ti) / K2 is obtained, and it is determined whether this difference is smaller than the predetermined value Pref. By this processing, the bucket 13 turns with no earth and sand in the bucket 13. Can be excluded. It should be noted that the processing of step 63 can be omitted, although the work detection accuracy is somewhat lowered. Next, in step 64, an average boom cylinder pressure PRrbb for a predetermined time ΔT immediately before the bucket dump operation start time Tbkt is obtained. In step 65, the average boom cylinder pressure PRrbb is multiplied by a predetermined pressure-weight conversion coefficient k to determine the amount of soil Wh carried by the bucket 13 per time. Next, in step 66, the earth and sand load Wh and the bucket dump operation start time Tbkt are set as Th in the communication control unit 196.
[0062]
In addition, the above Then, since the earth discharging posture of the excavator 1 at the time of bucket dumping does not change so much, the correction does not have to be performed at the time of calculating the soil amount, but the posture is obtained using an arm angle sensor or a bucket angle sensor and the amount of earth and sand Wh is calculated. You may calculate.
[0063]
When step 59, step 60, and step 63 are not applicable, the process returns to step 58 of “B” in the flowchart shown in FIG. 11, all flags are set to zero, and the process returns to step 42. Further, every time work detection is completed, the process returns to step 41 of “C” and the work detection process is repeated.
[0064]
Further, although steps 59 and 60 are somewhat inaccurate, the processing of these steps can be omitted.
[0065]
When one or more loads Whj and one or more loads Whj and bucket dump operation start time Thj are set in the communication control unit 196 in the above operation detection program, they are provided in the management unit 6 via the radio unit 23 and the radio unit 26. The data sent to the management device 25 is processed by the soil volume management device 27 and output to the display device 28 and the printer 29. Here, j of Whj indicates the number of the hydraulic excavator. When working with one hydraulic excavator, j is only 1, and when two hydraulic excavators are working annually, the first machine has j = 1 and the second machine has j = 2.
[0066]
Next, the soil volume management by the manager on the landing ship will be described.
[0067]
The operation procedure of the manager on the lift ship is the same through four types of display screens to be described later.
[0068]
When the manager starts the work of collecting soil and sand from the barge, the measurement start button 35 shown in FIG. 2 is pressed. The measurement start signal S is input to the input interface 271 by pressing this button. The administrator presses the measurement end button 36 when the work of dredging earth and sand from one barge ship is completed. By pressing this button, a measurement end signal E is input to the input interface 271. Further, when the print button 37 is pressed, the print signal P is input to the input interface 271, and when the program end button 38 is pressed, the program end signal PE is input to the input interface 271.
[0069]
First, processing in the case where the amount of earth and sand transferred by one hydraulic excavator is managed by tonnage will be described with reference to FIGS.
[0070]
FIG. 13 shows a display screen displayed on the display device 28.
[0071]
The display items of the display screen 30 shown in the figure include a current status screen 31 indicating the daily work volume, a date / time screen 32 indicating the date and current time, a barge ship history screen 33 indicating the work history for each barge ship, The screen includes four types of display screens including a daily report screen 34 showing a work history and four buttons including a measurement start button 35, a measurement end button 36, a print button 37, and a program end button 38. In the current situation screen 31, 311 is a load state display section for displaying the measured load Wr1 inside the bucket, which changes every moment, and 312 is a ground excavation for displaying a single amount Wh1 when the excavator puts earth and sand into the hopper. An amount display unit 313 is an integration number display unit 315 indicating the number of times CN1t is integrated every day when the excavator inputs soil into the bopper, 314 is an integrated value display unit indicating the amount of soil input Wlt per day, and 315 is sediment per unit time It is the earthing cycle display part which displays quantity Wc. In this screen, the values of the earthing amount display unit 312, the integration number display unit 313, and the integration value display unit 314 are updated every time the earth and sand amount Wh <b> 1 is sent from the load measuring device main body 19. Further, the value of the earthing cycle display unit 315 is updated every certain time.
[0072]
In the date / time screen 32, reference numeral 321 denotes a date display unit indicating a work day, and reference numeral 322 denotes a time display unit that displays the current time. Next, in the barge ship history screen 33, reference numeral 331 denotes a barge ship number display section which an administrator inputs to the soil volume management device using the keyboard 39, and reference numeral 332 denotes a hydraulic excavator scooping out the earth and sand in the previous barge ship. The start time display unit 333 indicates the start time Tstart (Bn), 333 indicates the end time display unit 334 displays the time Tend (Bn) at which the hydraulic excavator finished crushing earth and sand in the previous barge. An operation time display section 335 indicating a time Tse (Bn) at which the excavator worked on the previous barge, and an average soil amount Wavg per bucket that the excavator crawled on the previous barge. An average soil amount display unit 336 indicates a soil discharge cycle display unit 33 that indicates the soil amount Wbc per hour the hydraulic excavator scoops in the previous barge. 33 Is the total amount of soil display unit that shows the total amount of soil ΣWall per barge (k). Here, Bn is the number of barges.
[0073]
The daily report screen 34 includes a time table 341 and a bar 342 connecting a start time Tstart (Bn) and an end time Tend (Bn) for each barge ship.
[0074]
The value and bar displayed on the barge ship history screen 33 and the daily report screen 34 are updated every time the earth and sand scooping from one barge ship is completed.
[0075]
The measurement start button 35 is configured so that the color is reversed when pressed and the color is reversed until the measurement end button 36 is pressed. The print button 37 and the program end button 38 are also configured so that the colors are reversed when the respective buttons are pressed.
[0076]
In this way, the amount of work and the work state can be easily grasped intuitively by expressing the display during measurement in pictorial or reverse colors.
[0077]
Next, a flowchart showing a procedure for soil volume management in the soil volume management device 27 will be described with reference to FIGS.
[0078]
FIG. 14 shows the start program (1) of the soil volume management device 27. Here, since there is one hydraulic excavator, j = 1. This is a program that starts when the soil management device 27 is turned on. In step 70, various parameters described later are initialized. Specifically, the number of barges Bn, the number of times of accumulation CN1t per day, and the total amount Wlt per day are set to zero. However, if the date does not change when the power is turned on, the above value is not set to 0 and the previous value is set. Next, the total number Nall of each barge ship, the average soil amount Wavg per cup, and the soil amount Wbc per hour are set to zero. Finally, the earthing cycle Wc is set to zero. Next, in step 71, a sedimentation cycle coefficient i for calculating the amount of sediment Wc per hour is set. For example, i is set to 5 when calculating the amount of sediment per time of the past five inputs. When i is set, the program ends. When the start program ends, the work management program (1) is then started.
[0079]
15 and 16 are flowcharts showing the processing procedure of the work management program (1).
[0080]
First, in step 72, it is determined whether or not the measurement start signal S is ON. If it is ON (when the administrator presses the measurement start button), the barge ship number Barge # is set in step 73. Here, the value input to the soil volume management device 27 by the administrator is set in Barge #. Next, in step 74, 1 is added to the number Bn of barges, and the total number Nall of each barge to be used later is set to 0.
[0081]
Next, in step 75, the measurement start time Tstart (Bn) is set to the current time Tnow. Next, in step 76, a data request signal Cstart is created and sent to the load measuring device main body 19 using the communication control unit 277 of the soil volume management device 27.
[0082]
In step 77, the communication control unit 277 determines whether or not the earth and sand amount Wh1 has been received from the load measuring device main body 19. If the amount of earth and sand Wh1 has been received, 1 is added to the total number Nall of each barge ship in the next step 178, and Wh1 is substituted into the total quantity Wall (Nall) of each barge ship as the amount of earth and sand to be loaded into the hopper. Then, the bucket dum operation start time Th1 is substituted into the closing time Tall (Nall) as the charging time. Subsequently, at step 79, the amount of earth and sand Wb1 (Bn) and the number of times CN1 (Bn) for each barge ship are calculated. Here, since there is one hydraulic excavator, j is set to 1, and Wb1 (Bn) and CN1 (Bn) are given by the following equations.
[0083]
Wb1 (Bn) = Wb1 (Bn) + Wh1
CN1 (Bn) = CN1 (Bn) +1
However, Bn indicates the number of barges.
[0084]
Further, in step 80, the number of times of integration CN1t and the total amount W1t per day are calculated. Here, since there is one hydraulic excavator, j is set to 1, and CN1t and W1t are given by the following equations.
[0085]
CN1t = CN1t + 1
W1t = W1t + Wh1
Next, in step 81, it is determined whether or not the total number Nall is equal to or greater than the earthing cycle coefficient i for calculating the amount of sediment per hour. If larger, the amount of earth and sand per hour (landing cycle) Wc is calculated in step 82. If not, go to step 83. Here, Wc is given by the following equation.
[0086]
[Expression 1]

[0087]
Here, for example, in the case of obtaining the amount of sediment per hour (landing cycle) Wc using the average amount of sediment 5 times, until the total number Nall of each barge reaches 5, the amount of sediment per hour is Without being calculated, every time the total number Nall increases by 1 from 5 onward, the amount of earth and sand per hour (landing cycle) Wc is calculated.
[0088]
Moreover, the amount of earth and sand Wc per time can also be displayed every certain number of times. In this case, Null ≧ i in step 81 is set.
Nall = i + i × s
Replace with The initial value of s is 0, and 1 is added every time Wc is calculated.
[0089]
For example, when it is desired to display every five times in the past, the amount of earth and sand Wc per hour is calculated in the fifth, tenth and fifteenth times.
[0090]
Next, at step 83, the amount of earth and sand Wh 1 is displayed on the earth volume display portion 312 of the current status screen 31, the number of daily accumulations CN 1 t is displayed on the earth accumulation number display portion 313, and the total amount Wlt is displayed on the earth accumulation amount integrated value display portion 314. Is done. If the earthing cycle Wc has been updated, Wc is also displayed on the earthing cycle display unit 315.
[0091]
Next, in step 84, it is determined whether or not the load Wr1 inside the bucket that changes from moment to moment is received from the communication control unit 277. If this has not been received, the process proceeds to step 86 in FIG. If received, in step 85, the load Wr1 is displayed on the load state display section 311 of the current situation screen 31.
[0092]
Subsequently, at step 86, it is determined whether or not the measurement end signal E is ON.
[0093]
If not, the process proceeds to step 92. If ON (when the administrator presses the measurement end button), in step 87, the end time Tend (Bn) is set to the current time. Next, in step 88, the data stop signal Cend is sent to the load measuring device main body 19 using the communication control unit 277 of the soil volume management device 27.
[0094]
Next, in step 89, the work time Tse (Bn), average soil volume Wavg, and soil volume Wbc per hour are calculated for each barge ship. Each value is given by:
[0095]
[Expression 2]

[0096]
Here, Bn indicates the number of barges at the end.
[0097]
Subsequently, in step 90, the Barge # input by the administrator is displayed on the barge ship number display section 331 of the barge ship history screen 33. The start time display unit 332, the end time display unit 333, and the work time display unit 334 display Tstart (Bn), Tend (Bn), and Tse (Bn), respectively. The previously calculated Wavg and Wbc are displayed on the average soil amount display unit 335 and the earthing cycle display unit 336, respectively. Finally,
[0098]
[Equation 3]

[0099]
Is displayed on the total soil amount display section 337. At the same time, a bar connecting Tstart (Bn) and Tend (Bn) is displayed on the time table 341 of the daily report screen 34.
[0100]
Next, in order to print the history for each barge in step 91,
[0101]
[Expression 4]

[0102]
Is output by the printer 29.
[0103]
Subsequently, in step 92, it is determined whether or not the print signal P is ON. If ON at step 93, data relating to the daily report is sent to the printer 29 for printing. If not, the process proceeds to step 94. Next, in step 94, it is determined whether or not the program end signal PE is ON. If it is ON, the soil management device 27 is automatically turned off. If not ON, the processing from step 72 is repeated.
[0104]
Next, processing in the case where the amount of earth and sand transferred by two hydraulic excavators is managed by tonnage will be described with reference to FIGS. 15 to 17.
[0105]
FIG. 17 shows a display screen displayed on the display device 28.
[0106]
The display items of the display screen 40 shown in the figure include a current status screen 41 indicating the work amount of two hydraulic excavators per day, a date / time screen 42 displaying the date and current time, and a work history for each barge. It consists of four buttons consisting of a barge ship history screen 43, a daily report screen 44 showing the work history in a bar, and four buttons consisting of a measurement start button 35, a measurement end button 36, a print button 37, and a program end button 38. .
[0107]
In the current status screen 41, 411a is a load state display unit that displays the load Wr1 inside the bucket of the first unit (unit 1) that changes every moment, and 411b is a bucket that changes every moment of the second unit (unit 2). Load state display section for displaying the internal load Wr2, 412a indicates the amount of unloading display for displaying the amount Wh1 once the No. 1 unit puts the earth and sand into the hopper, 412b indicates the one time when the No. 2 unit puts the earth and sand into the hopper The unloading amount display section for displaying the amount Wh2 of the earth, 413a is the cumulative number display section for indicating the number of times CN1t the unit No. 1 puts the earth and sand into the hopper, and 413b is the number of times of accumulation every day when the No. 2 unit puts the earth and sand into the hopper. Cumulative number display unit indicating CN2t, 414a is an integrated value display unit indicating the total amount of sand and sand input W1t per day for Unit 1 and 414b is an integrated value display indicating the total amount of soil and sand input W2t per day for Unit 2 , 415 is Agetsuchi cycle display unit for displaying the sediment amount Wc per a certain time. Further, reference numeral 416 denotes a total excavation number display unit indicating an amount obtained by adding up two integrated times CNlt and CN2t, and reference numeral 417 denotes a total excavation amount display unit indicating a total amount obtained by adding two input total amounts W1t and W2t. .
[0108]
In this screen, the values of the amount of earth-moving display unit 412a, the number-of-integrations display unit 413a, and the integrated value display unit 414a are updated every time the amount of earth and sand wh1 is sent from the load measuring device body 19. In addition, the values of the earthing amount display unit 412b, the integration number display unit 413b, and the integration value display unit 414b are updated every time the earth and sand amount Wh2 is sent from the load measuring device body 19. Further, every time either the amount of earth and sand Wh1 or Wh2 is sent, the total number of times of unloading display 416 and the total amount of unloading display 417 are updated. Further, the value shown in the earthing cycle display unit 415 is updated every certain number of times when either the amount of earth and sand Wh1 or Wh2 is sent. The date screen 421 is the same as when one unit is used.
[0109]
Next, on the barge ship history screen 43, reference numeral 431 denotes a barge ship number display section in which the manager manually works the soil volume management device 27, and reference numeral 432 denotes a time Tstart at which the excavator starts scooping up earth and sand in the previous barge ship. (Bn) indicates a start time display unit 433, and an end time display unit 433 displays a time Tend (Bn) when a hydraulic excavator finishes crushing earth and sand in the previous barge. 434 indicates a previous barge. A work time display section 435 showing the time Tse (Bn) at which the excavator has worked on the ship is an average soil representing the average soil volume Wavg per cup that two hydraulic excavators have run out from the previous barge. An amount display unit 436 is a discharge cycle display unit that indicates the amount of soil Wbc per hour that two hydraulic excavators scooped in the previous barge, and 437 is each barge Two of the total amount of soil ΣWall (k) = to display the (Wb1 (Bn) + Wb2 (Bn)).
[0110]
Here, Bn is the number of barges. Next, the daily report screen 44 includes a time table 441 and a bar 442 connecting a start time Tstart (Bn) and an end time Tend (Bn) for each barge ship.
[0111]
The values and bars displayed on the barge history screen 43 and the daily report screen 44 are updated every time the earth and sand scooping from one barge ship is completed.
[0112]
Next, a procedure for soil volume management in the soil volume management device 27 when two hydraulic excavators are used will be described with reference to the flowcharts shown in FIGS.
[0113]
In the start program of FIG. 14, j is 1 or 2 because there are two hydraulic excavators here. In step 70, various parameters are initialized as described above. Specifically, the number of barge ships Bn, the number of times of integration of the first unit CN1t, the number of times of integration of the second unit CN2t, the total amount W1t of the first unit of the day, and the total amount W2t of the second unit of the day are set to zero. The rest is the same as when one hydraulic excavator is used, and a description thereof will be omitted.
[0114]
When the start program ends, the work management program (1) shown in FIGS. 15 and 16 is started.
[0115]
First, in step 72, it is determined whether or not the measurement start signal S is ON. If it is ON, the barge number Barge # is set in step 73. Next, in step 74, 1 is added to the number Bn of barges, and the total number Nall of each barge to be used later is set to 0.
[0116]
Next, in step 75, (Bn) is set to the current time Tnow at the measurement start time Tstart. Next, in step 76, a data request Cstart is created, and the load measuring device 19 is sent using the communication control unit 277 of the soil volume management device 27.
[0117]
Next, in step 77, the communication control unit 277 determines whether or not the first and second soil volume Wh1 or the second and second soil volume Wh2 has been received from the load measuring device body 19. If the amount of earth and sand Wh1 has been received, in the next step 78, 1 is added to the total number Nall of No. 1 and No. 2 for each barge ship throwing earth and sand into the hopper, and the amount of earth and sand to be thrown into the hopper is obtained. Wh1 is substituted into the total amount Wall (Nall), and the bucket dump operation start time Th1 is substituted into the charging time Tall (Nall) as the charging time. If the earth and sand amount Wh2 of Unit 2 has been received, 1 is added to the total number Nall of each barge in Step 78, and Wh2 is substituted into Wall (Nall) as the amount of earth and sand to be loaded into the hopper. The bucket dump operation start time Th2 is substituted for the input time Tall (Nall) as the input time. Subsequently, if the sediment amount Wh1 and the charging time Th1 of Unit 1 are received in Step 77, the sediment amount Wbl (Bn) and the number of times CN1 for each Barge ship of Unit 1 are obtained in Step 79 as shown in the following equation. (Bn) is calculated.
[0118]
Wb1 (Bn) = Wb1 (Bn) + Wh1
CN1 (Bn) = CN1 (Bn) +1
Further, if the sediment amount Wh2 and the loading time Th2 of the second unit are received in step 77, the sediment amount Wb2 (Bn) and the number of times CN2 (Bn) for each second unit barge ship are obtained in step 79 as shown in the following equation. ).
[0119]
Wb2 (Bn) = Wb2 (Bn) + Wh2
CN2 (Bn) = CN2 (Bn) +1
Further, in step 80, if the value of Unit 1 is received, the number of times of accumulation CN1t and the total amount W1t are calculated every day, and if the value of Unit 2 is also received, the number of times of integration CN2t and the amount of total W2t are calculated. calculate. CNjt and Wjt are given by the following equations.
[0120]
CNjt = CNjt + 1
Wjt = Wjt + Whj
Next, in step 81, it is determined whether or not the total number Nall is equal to or greater than the earthing cycle coefficient i for calculating the amount of sediment per hour. If it is larger, in step 82, the amount of earth and sand per hour (landing cycle) Wc is calculated. If not, go to step 83.
[0121]
Wc is given by the following equation.
[0122]
[Equation 5]

[0123]
Here, for example, in the case of obtaining the amount of sediment per hour (landing cycle) Wc using the average amount of sediment 5 times, until the total number Nall of each barge reaches 5, the amount of sediment per hour is Without being calculated, every time the total number Nall increases by 1 from 5 onward, the amount of earth and sand per hour (landing cycle) Wc is calculated.
[0124]
Moreover, the amount of earth and sand Wc per time can also be displayed every certain number of times. In this case, Null ≧ i in step 81 is set.
Nall = i + i × s
S has an initial value of 0 and is incremented by 1 every time Wc is calculated.
[0125]
For example, when it is desired to display every five times in the past, the amount of earth and sand Wc per hour is calculated in the fifth, tenth and fifteenth times.
[0126]
Next, in step 83, if the sediment amount Wh1 and the loading time Th1 of Unit 1 are received in step 77, the sediment amount display unit 412a of the current status screen 41 displays the sediment amount Wh1 and the cumulative accumulation count display unit 413a. In addition, the total amount W1t is displayed in the number of times of accumulation CN1t per day and the unloading amount integration direct display section 414a. Further, if the sediment amount Wh2 and the loading time Th2 of Unit 2 are received in step 77, the daily amount is accumulated in the sediment amount display portion 412b of the current situation screen 41 in the sediment amount display portion 412b. The total number W2t is displayed in the number of times CN2t and the accumulated amount integrated value display unit 414a. If the earthing cycle Wc has been updated, Wc is also displayed on the earthing cycle display unit 415. Furthermore, in step 77, when the amount of sand and sand of Unit 1 or Unit 2 and the input time are received, the total daily unloading capacity CN1t + CN2t is displayed, and the total daily unloading amount W1t + W2t is displayed.
[0127]
Next, in step 84, it is determined whether or not the communication control unit 277 receives the load Wr1 or Wr2 inside the bucket that changes every moment. If not received, the process proceeds to step 86. If Wr1 has been received, it is displayed on the load state display part 411a of the current situation screen 41 in step 85. Similarly, if Wr2 is received, it is displayed on the load state display unit 411b.
[0128]
Subsequently, at step 86, it is determined whether or not the measurement end signal E is ON. If not, the process proceeds to step 92. If ON (when the administrator presses the measurement end button), in step 87, the end time Tend (Bn) is set to the current time. Next, in step 88, the data stop signal Cend is sent to the load measuring device main body 19 using the communication control unit 277 of the soil volume management device 27.
[0129]
Next, in step 89, the working time Tse (Bn), average soil volume Wavg, and soil volume Wbc per hour are calculated for each barge ship. Each value is given by:
[0130]
[Formula 6]

[0131]
Here, Bn indicates the number of barges at the end.
[0132]
Subsequently, in step 90, the Barge # input by the administrator is displayed on the barge ship number display unit 431 of the barge ship history screen 33. The start time display unit 432, the end time display unit 433, and the work time display unit 434 display Tstart (Bn), Tend (Bn), and Tse (Bn), respectively. The previously calculated Wavg and Wbc are displayed on the average soil volume display unit 435 and the total soil volume display unit 437, respectively. At the same time, a bar connecting Tstart (Bn) and Tend (Bn) to Tend (Bn) is displayed on the time table 341 of the daily report screen 34.
[0133]
Next, in order to print the history for each barge in step 91,
[0134]
[Expression 7]

[0135]
Is output to the printer 29.
[0136]
Subsequently, in step 92, it is determined whether or not the print signal P is ON. If ON, in step 93, data relating to the daily report is sent to the printer 29 for printing. If not, the process proceeds to step 94.
[0137]
Next, at step 94, it is determined whether or not the program end signal PE is ON. If it is ON, the soil management device 27 is automatically turned off. If not ON, the processing from step 72 is repeated.
[0138]
Next, processing in the case where the amount of earth and sand transferred by one hydraulic excavator is managed by volume will be described with reference to FIGS.
[0139]
FIG. Provided in one embodiment of the present invention 3 is a display screen displayed on the display device 28.
[0140]
The display items of the display screen 50 shown in the figure are an unloading status screen 51 showing the work amount for each barge, a date / time screen 52 showing the date and current time, a history screen 53 showing the daily work amount, It consists of five screens consisting of a daily report screen 54 showing the history as a bar and a specific gravity setting screen 55, and five buttons consisting of a measurement start button 35, a measurement end button 36, a print button 37, a program end button 38, and a specific gravity setting button 39. Is done.
[0141]
On the unloading situation screen 51, the load state display unit 511 indicating the load Wr1 inside the bucket that changes from moment to moment, and the amount of soil that displays the value obtained by dividing the load Wh1 of the earth and sand thrown into the hopper by the excavator by the specific gravity Cd. The display unit 512, the number of unloading times display unit 513 for displaying the total number Nall of each barge, the total amount display unit 514 for displaying the total amount Vb1 (Bn) for each barge, and the amount of sediment Vc per time There is a cycle display 515 for displaying. This screen data is updated every time the earth and sand load Wh1 is received.
[0142]
Next, the date screen 52 includes a date display unit 521 that displays the current date and a time display unit 522 that displays the current time Tnow. In addition, the history screen 54 includes a ship number display unit 531 that displays the number of barges Bn, a start time display unit 532 that displays the work start time Tstart (1) of the first barge, and the most recent work end. End time display unit 533 for displaying time Tend (Bn), work time display unit 534 for displaying the daily work time Twork, number of times of unloading display 535 for displaying the accumulated number of times CN1t for each day, and the total amount of earth and sand for each day The integrated soil volume display unit 536 displays V1t. This screen is updated every time the measurement end button is pressed.
[0143]
Next, the daily report screen 54 includes a time table 541 having time on the horizontal axis and a bar 542 for displaying a work time Tse (Bn) for each barge ship in the Bn-th barge ship. This bar connects the measurement start time Tstart (Bn) and the measurement end time Tend (Bn) for each barge ship.
[0144]
The specific gravity setting screen 55 includes a specific gravity display portion 551 for displaying the current specific gravity Cd and a specific gravity button 39 for setting the specific gravity.
[0145]
Next, a procedure for soil volume management in the soil volume management device 27 will be described with reference to the flowcharts shown in FIGS.
[0146]
FIG. 19 shows the start program (2) of the soil volume management device 27.
[0147]
This program is activated when the soil volume management device 27 in FIG. 2 is turned on.
[0148]
First, in step 100, various parameters used in the work amount management program are initialized. First, the number of barges Bn and the total number Nall of each barge are set to zero. Subsequently, the cumulative number CNjt and the total amount Vjt of the daily excavator throwing earth and sand into the hopper are set to zero. In this case, j is 1 because there is one hydraulic excavator. That is, the number of times of integration CNjt per day is CN1t, and the total amount Vjt is V1t. However, Bn, CN1t, and V1t are not set to 0 if the date has not changed between the last power-off and the current power-on.
[0149]
Next, the amount of earth and sand per hour (pumping cycle) Vc that the hydraulic excavator puts into the hopper is set to zero. Further, the total work time Twork is set to zero. This Twork is not initialized if the date has not changed between when the power was last turned off and when the power was turned on this time.
[0150]
Finally, in step 101, a coefficient i for calculating the amount of sediment per hour is set to a predetermined number. For example, i is set to 5 when calculating the amount of sediment per time of the past five inputs.
[0151]
Next, the specific gravity Cd for calculating the volume of earth and sand is set to a predetermined value, and the start program ends. When the start program ends, the work management program (2) starts.
[0152]
20 and 21 are flowcharts showing the processing procedure of the work management program (2).
[0153]
First, in step 102, it is determined whether or not the measurement start signal S is ON. If it is ON (when the administrator presses the measurement start button), in step 103, 1 is added to the number of barges Bn, and the total number Nall of each barge is set to 0. Next, in step 104, the measurement start time Tstart (Bn) is set to the current time Tnow. Next, in step 105, a data request signal Cstart is created and sent to the load measuring device body 19 using the communication control unit 277 of the soil volume management device 27.
[0154]
In step 106, the communication control unit 277 determines whether or not the earth and sand amount Wh <b> 1 and the bucket dump operation start time Th <b> 1 are received from the load measuring device main body 19. If not, the process proceeds to step 113. If received, in the next step 107, 1 is added to the total number Nall of each barge, and the volume is calculated by dividing the amount of sediment Wh1 by the specific gravity Cd, substituting it into Vall (Nall), and the sediment is transferred to the hopper. The bucket dump operation start time Th1 is substituted into Tall (Nall) as the input time.
[0155]
Next, in step 108, the amount of earth and sand Vb1 (Bn) and the number of times CN1 (Bn) charged into the hopper for each barge ship are calculated. Vb1 (Bn) and CNl (Bn) are given by the following equations.
[0156]
Vb1 (Bn) = Vb1 (Bn) + Wh1 / Cd
CN1 (Bn) = CN1 (Bn) +1
Next, in step 109, the number of times of integration CN1t and the total amount V1t for each day are obtained. The formula is as follows.
[0157]
CN1t = CN1t + 1
V1t = V1t + Wh1 / Cd
Subsequently, in step 110, it is determined whether or not the total number Nall of each barge is equal to or greater than the earthing cycle coefficient i for calculating the amount of sediment per hour. If smaller, go to step 112. If equal or larger, in step 111, the amount of earth and sand per hour (landing cycle) Vc is calculated.
Vc is given by the following equation.
[0158]
[Equation 8]

[0159]
Here, for example, when the average amount of sediments of 5 times is used, the amount of sediment per hour (when determining the earthing cycle Vc, until the total number Nall of the excavator for each barge loaded into the hopper becomes 5, The amount of sediment per hour is not calculated, but the amount of sediment Wc per hour is calculated every time the cumulative number n increases by 1 from 5 or more.
[0160]
In addition, the amount of earth and sand Vc per hour can be displayed every certain number of times. In this case, Null ≧ i in step 110 is set.
Nall = i + i × s
S has an initial value of 0, and 1 is added each time Vc is calculated.
[0161]
For example, when it is desired to display every 5 times in the past, the amount of earth and sand per hour (landing cycle) Vc is calculated in the fifth, tenth and fifteenth times.
[0162]
Next, in step 112, various work amounts are displayed. Wh1 / Cd is displayed on the soil volume display part 512 of the unloading situation screen 51 of FIG. In addition, the number of times CN1 (Bn) for each barge ship in the current Bn-th barge ship is displayed in the number-of-unloading display section 513, and the barge ship in the current Bn-th barge ship is displayed in the accumulated soil volume display section 514. The amount of earth and sand Vb1 (bn) for each is displayed. In addition, if the amount of earth and sand per hour (landing cycle) Vc is updated, it is displayed on the earthing cycle display unit 515.
[0163]
Next, in step 113, it is determined whether or not the communication control unit 277 of the soil volume management device 27 has received the load Wr <b> 1 inside the bucket that changes every moment. If not, the process proceeds to step 115. If it is received, it is displayed on the load state display section 511 of the earthing situation screen 51 and the process proceeds to step 115.
[0164]
Next, in step 115, it is determined whether or not the measurement end signal E is ON.
[0165]
If it is ON (when the administrator presses the measurement end button), in step 116, the current work end time Tend (Bn) in the Bnth barge is set to the current time. Next, in step 117, the data stop signal Cend is sent to the load measuring device main body 19 using the communication control unit 227 of the soil volume management device 27. When the load measuring device main body 19 receives the data request signal Cend, the load measuring device main body 19 ends the transmission of data to the management device 27.
[0166]
Next, in step 118, the work time Tse (Bn) for each barge and the total work Twork of the daily work hours are calculated. Each formula is as follows.
[0167]
Tse (Bn) = Tend (Bn) −Tstart (Bn)
Twork = Twork + Tse (Bn)
When the calculation in step 118 is completed, in step 119, the current number of vessels Bn is displayed on the vessel number display portion 531 of today's history screen 53. The start time Tstart (1) is displayed in the start time display section 532, the work end time Tend (Bn) when the work of finally putting the sand and sand into the hopper from the Bn-th barge ship is completed is displayed in the end time display section 533, and The accumulated work time of each day is displayed on the work time display unit 534, the accumulated number of times CN1t for each day is displayed on the number of unloading times display unit 535, and the total amount V1t for each day is displayed on the accumulated soil amount display unit 536. In addition, a bar connecting Tstart (Bn) and Tend (Bn) is displayed on the time table 541 of the daily report screen 54.
[0168]
Next, at step 120, as data per barge ship, the start time Tstart (Bn), end time Tend (Bn), work time Tse (Bn), sediment amount Vb1 (Bn), and the number of times of accumulation CN1 ( Bn) is output to the printer 29.
[0169]
Next, in step 121, it is determined whether or not the print signal P is ON. If the print signal P is ON (when the administrator presses the print button), a daily report is output from the printer 29 at step 122.
[0170]
Next, in step 123, it is determined whether or not the program end signal PE is ON. In step 124, the program ends and the power is automatically turned off. If the program end signal PE is not ON, the processing from step 102 is repeated.
[0171]
Next, processing in the case where the amount of earth and sand transferred by two hydraulic excavators is managed by volume will be described with reference to FIGS.
[0172]
FIG. 22 is a display screen displayed on the display device 28.
[0173]
The display items of the display screen 60 shown in the figure are the unloading status screen 61 indicating the work amount of two hydraulic excavators for each barge, the date time screen 62 displaying the date and the current time, and the daily work amount. 5 screens including a history screen 63, a daily report screen 64 showing a work history in a bar, and a specific gravity setting screen 65, a measurement start button 35, a measurement end button 36, a print button 37, a program end button 38, and a specific gravity setting button 39. Consists of five buttons.
[0174]
On the unloading situation screen 61, a load state display unit 611a indicating the load Wr1 inside the bucket that changes every moment of the first unit, and a load state display unit 611b showing the load Wr2 inside the bucket that changes every moment of the second unit, The soil volume display unit 612a that displays the volume Vh1 of earth and sand thrown into the hopper by the No. 1 unit, the soil volume display unit 612b that displays the volume Vh2 of soil and sand thrown into the hopper by the No. 2 unit, and the number of times of the first unit per barge CN1 (unloading number display unit 613a for displaying (Bn), the number of unloading unit V2 for each barge ship CN2 (Bn), and the total amount Vb1 of the first unit for each barge ship (bn) Bn), an accumulated soil volume display unit 614a for displaying the total volume Vb2 (Bn) at the time of No. 2 for each barge ship, and a cycle table for displaying the sediment volume Vc per hour. There is a section 615.
[0175]
In addition, the unloading status screen 61 displays the number of times of unloading display 616 for displaying the total number Null of Unit 1 and Unit 2 for each barge and the total amount of Unit 1 and Unit 2 for each barge.
[0176]
[Equation 9]

[0177]
There is an accumulated soil volume display unit 617 for displaying.
[0178]
Next, the date screen 62 is the same as the date screen 52 shown in FIG. The history screen 64 displays the number of vessels Bn. number A display unit 631, a start time display unit 632 for displaying the work start time Tstart (1) of the first barge ship, and an end time display unit 633 for displaying the work end time Tend (Bn) of the last barge ship , Work time display unit 634 indicating the daily work time Twork, earthing number display unit 635 for displaying the total number of units 1 and 2 (CN1t + CN2t) per day, and the total amount of earth and sand of Unit 1 and Unit 2 per day The integrated soil volume display unit 636 displays (V1t + V2t). This screen is updated every time the measurement end button 36 is pressed.
[0179]
Next, the daily report screen 64 includes a time table 641 and a bar 642 for displaying a work time Tse (Bn) for each barge. This bar connects the measurement start time Tstart (Bn) and the measurement end T time Tend (Bn) for each Bn-th barge.
[0180]
The specific gravity setting screen 65 is the same as the specific gravity setting screen 55 shown in FIG.
[0181]
Next, a procedure for soil volume management in the soil volume management device 27 when two hydraulic excavators are used will be described with reference to flowcharts shown in FIGS.
[0182]
In the start program shown in FIG. 19, since there are two hydraulic excavators, the number N is 2, j indicating 1 is 1 and j indicating 2 is 2.
[0183]
When the soil volume management device 27 in FIG. 2 is turned on, the start program (2) is executed. In step 100, various parameters used in the work amount management program are initialized. First, the number of barges Bn and the total number of barges are set to zero. Subsequently, the cumulative number CN1t and the total amount V1t of the earth No. 1 that have been put into the hopper by the No. 1 machine and the cumulative number CN 2t and the total quantity V 2t that No. 2 have put the earth and sand into the hopper are set to zero. However, Bn, CN1t, V1t, CN2t, and V2t are not set to 0, but are kept at the previous values when the date has not changed between the previous power-off and the current power-on.
[0184]
Next, the amount of earth and sand per hour (pumping cycle) Vc that the hydraulic excavator puts into the hopper is set to zero. Further, the total work time Twork is set to zero. This Twork is not initialized unless the date has changed between when the power was last turned off and when this time the power was turned on.
[0185]
Finally, in step 101, a coefficient i for calculating the amount of sediment per hour is set to a predetermined number. For example, i is set to 5 when calculating the amount of sediment per time of the past five inputs.
[0186]
Next, the specific gravity Cd for calculating the volume of earth and sand is set to a predetermined value, and the start program (2) ends. When the start program (2) is completed, the work management program (2) is activated.
[0187]
The work management program (2) will be described with reference to the flowcharts shown in FIGS.
[0188]
First, in step 102, it is determined whether or not the measurement start signal S is ON. If it is ON (when the administrator presses the measurement start button), in step 103, 1 is added to the number of barges Bn, and the total number Nall of each barge is set to 0. Next, at step 104, the measurement start time Tstart (Bn) of the Bn-th barge is set to the current time Tnow. Next, in step 104, a data request signal Cstart is created and sent to the load measuring device main body 19 using the communication control unit 277 of the soil volume management device 27.
[0189]
In step 106, it is determined whether or not the communication control unit 277 has received the sediment amount Wh1 and bucket dump operation start time Th1 of Unit 1 or the sediment amount Wh2 and bucket dump operation start time Th2 of Unit 2 from the load measuring device main body 19. judge. If no data of any unit has been received, the process proceeds to step 113. If the data of Unit 1 has been received, add 1 to the total number Nall of each barge in the next step 107, divide the amount of earth and sand Wh1 by the specific gravity Cd, substitute it for Vall (Nall), and input As the time, the bucket dump operation start time Th1 is substituted into Tall (Nall). If the data of Unit 2 has been received, in step 107, 1 is added to the total number Nall for each barge ship, and the amount of earth and sand Wh2 is divided by the specific gravity Cd to be substituted for Vall (Nall). The bucket dump operation start time Th2 is substituted into Tall (Nall) as the input time.
[0190]
Next, if the data of the first unit is received at step 106, the amount of earth and sand Vb1 (Bn) and the number of times CN1 (Bn) charged into the hopper for each barge ship are calculated at step 108. Vb1 (Bn) and CN1 (Bn) are given by the following equations.
[0191]
Vb1 (Bn) = Vb1 (Bn) + Wh1 / Cd
CN1 (Bn) = CN1 (Bn) +1
If the data of Unit 2 has been received, the amount of earth and sand Vb2 (Bn) and the number of times CN2 (Bn) that Unit 2 of each barge vessel has thrown into the hopper are calculated in Step 108. Vb2 (Bn) and CN2 (Bn) are given by the following equations.
[0192]
Vb2 (Bn) = Vb2 (Bn) + Wh2 / Cd
CN2 (Bn) = CN2 (Bn) +1
Next, in step 109, the number of times CN1t and the total amount V1t of the first car of No. 1 are obtained. The formula is as follows.
[0193]
CN1t = CN1t + 1
V1t = V1t + Wh 1 / Cd
Further, the number of times of integration CN2t and the total amount V2t of the second machine per day are obtained. The formula is as follows.
[0194]
CN2t = CN2t + 1
V2t = V2t + Wh2 / Cd
Subsequently, at step 110, it is determined whether or not the total number Nall of Unit 1 and Unit 2 for each barge is equal to or greater than the unloading cycle coefficient i for calculating the amount of sediment per hour. If smaller, go to step 112. If equal or larger, in step 79, the amount of sediment per hour (landing cycle) Vc is calculated. Vc is given by the following equation.
[0195]
[Expression 10]

[0196]
Here, for example, in the case of obtaining the sediment volume per hour (the unloading cycle) Vc using the average sediment volume of 5 times, until the total number Nall of the hydraulic excavator for each barge vessel put into the hopper becomes 5. The amount of earth and sand per hour is calculated without increasing the amount of earth and sand per hour, every time the cumulative number n increases by 1 from 5 onwards.
[0197]
In addition, the amount of earth and sand Vc per hour can be displayed every certain number of times. In this case, Null ≧ i in step 110 is set.
Nall = i + i × s
S has an initial value of 0, and 1 is added each time Vc is calculated.
[0198]
For example, when it is desired to display every 5 times in the past, the amount of earth and sand per hour (landing cycle) Vc is calculated in the fifth, tenth and fifteenth times.
[0199]
Next, in step 112, various work amounts are displayed. If the data of Unit 1 is received in Step 106, Wh1 / Cd is displayed on the soil amount display section 612a of the earthing situation screen 61 of FIG. In addition, the number of times CN1 (Bn) of Unit 1 scoops earth and sand from the Bn-th barge ship is displayed in the number-of-unloading display section 613a, and Unit 1 receives earth and sand from the Bn-th barge ship in the accumulated soil volume display section 614a. The amount Vb1 (Bn) that has been squeezed out is displayed. Further, if the data of Unit 2 is received in Step 106, Wh2 / Cd is displayed on the soil amount display part 612b of the earthing situation screen 61. In addition, the number of times CN2 (Bn) has sprinkled soil from the Bn-th barge ship is displayed in the number-of-unloading display section 613b, and the second soil is displayed in the accumulated soil volume display section 614b. The amount Vb2 (Bn) that has been squeezed out is displayed.
[0200]
If the data of Unit 1 or Unit 2 is received in Step 106, the total number of times Nall is displayed on the number of times of unloading display 616, and the total total amount is displayed.
[0201]
[Expression 11]

[0202]
Is displayed on the accumulated soil volume display unit 617.
[0203]
Furthermore, if the amount of earth and sand per hour (the earthing cycle) Vc is updated, it is displayed on the earthing cycle display unit 615.
[0204]
Next, in step 113, it is determined whether or not the load control unit 277 of the soil volume management device 27 has received the load Wr1 or Wr2 inside the bucket that changes from time to time for Unit 1 or Unit 2. If none has been received, the process proceeds to step 115. When the load Wr1 of the first unit is received, it is displayed on the load state display unit 611a of the earthing situation screen 61, and when the load Wr2 of the second unit is received, it is displayed on the load state display unit 611b. Then, the process proceeds to step 115.
[0205]
Next, in step 115, it is determined whether or not the measurement end signal E is ON.
[0206]
If it is ON (when the administrator presses the measurement end button), in step 116, the end time Tend (Bn) of the Bn-th barge is set to the current time. Next, in step 117, the data stop signal Cend is sent to the load measuring device main body 19 using the communication control unit 227 of the soil volume management device 27.
[0207]
When receiving the data request signal Cend, the load measuring device body 19 ends the data transmission to the management device 27.
[0208]
Next, in step 118, the work time Tse (Bn) for each Bn-th barge and the total work Twork of the work hours for each day are calculated. Each formula is as follows.
[0209]
Tse (Bn) = Tend (Bn) −Tstart (Bn)
Twork = Twork + Tse (Bn)
When the calculation of step 118 is completed, in step 119, the work start time Tstart () when the work of loading the earth and sand from the first barge ship into the hopper is started in the ship number display part 631 of the history screen 63 of the day. 1) in the start time display section 632, the work end time Tend (Bn) when the work of putting earth and sand from the last Bn-th barge into the hopper is completed, in the end time display section 633, and the daily work Cumulative time work is displayed in the work time display unit 634, and the sum of the cumulative number of units 1 and 2 for each day (CN1t + CN2t) is summed in the number of excavation times display unit 635. Is displayed on the accumulated soil volume display unit 636.
[0210]
In addition, a bar connecting Tstart (Bn) and Tend (Bn) is displayed on the time table 641 of the daily report screen 64.
[0211]
Next, in step 120, the start time Tstart (Bn), the end time Tend (Bn), the work time Tse (Bn) of the Bn-th barge ship, and the Bn-th barge ship of Unit 1 are obtained as data per barge ship. The amount of earth and sand Vb1 (Bn) and the amount of earth and sand Vb2 (Bn) of the No. 2 Bn-th barge ship The total number Nall and the total amount of No. 1 and No. 2 scooped earth and sand from the barge
[0212]
[Expression 12]

[0213]
Is output to the printer 29.
[0214]
Next, in step l21, it is determined whether or not the print signal P is ON. If the print signal P is On (when the administrator presses the print button), a daily report is output by the printer 29 at step 122.
[0215]
Next, in step 123, it is determined whether or not the program end signal PE is ON. In step 124, the power is automatically turned off when the program ends. If the program end signal PE is not ON, the processing from step 102 is repeated.
[0216]
As described above, in this embodiment, 2 According to one work form 2 In each case, the excavator loaded the hopper into the hopper just by pressing a button at the start and end of work. volume Etc. are automatically calculated and displayed, so the work management burden on the administrator can be greatly reduced. In addition, since the history and daily report for each barge ship are output, it is not necessary for the manager to sequentially record as in the prior art, and the workload of the manager can be reduced.
[0217]
【The invention's effect】
As described above, according to the present invention, the excavator moves the workpiece to be processed from the carrier to the processing site. volume Can be automatically calculated and displayed, so that the administrator can easily and accurately grasp various work loads. Also, the amount of work for each carrier can be managed. And It is possible to quickly and clearly grasp the work history and measurement state.
[Brief description of the drawings]
FIG. 1 is a diagram showing an example of a working form of a hydraulic excavator operating on a landing ship.
FIG. 2 of the present invention By the inventors It is a block diagram which shows the load measuring device and management apparatus of a hydraulic shovel.
FIG. 3 is a configuration diagram of the load measuring device main body 19 shown in FIG. 2;
FIG. 4 is a configuration diagram of the soil volume management device 27 shown in FIG. 2;
FIG. 5 is a diagram for explaining a boom boundary angle α that is used and set in advance during calculation processing of the load measuring device main body 19 shown in FIG. 2;
6 is a diagram illustrating waveforms of various signals input to the load measuring device main body 19 illustrated in FIG. 2 and waveforms of various signals that are arithmetically processed therein. FIG.
7 is a flowchart showing a processing procedure of a position teaching program 195c of the load measuring device main body 19 shown in FIG.
FIG. 8 is a flowchart showing a processing procedure of a work detection program (1) stored in the load measuring device main body 19 shown in FIG.
9 is a flowchart showing a processing procedure of a work detection program (1) stored in the load measuring device main body 19 shown in FIG.
10 is a flowchart showing a processing procedure of a turning boundary time teaching program used for setting a turning boundary time (Tswref) of the load measuring device main body 19 shown in FIG. 2;
11 is a flowchart showing a processing procedure of a work detection program (2) stored in the load measuring device main body 19 shown in FIG.
12 is a flowchart showing a processing procedure of a work detection program (2) stored in the load measuring device main body 19 shown in FIG.
13 is a display screen displayed on the display device 28 shown in FIG.
FIG. 14 is a flowchart showing a processing procedure of a start program (1) of the soil volume management device 27 shown in FIG. 2;
FIG. 15 is a flowchart showing a processing procedure of a work management program (1) of the soil volume management device 27 shown in FIG. 2;
FIG. 16 is a flowchart showing a processing procedure of a work management program (1) of the soil volume management device 27 shown in FIG. 2;
FIG. 17 is shown in FIG. Table 3 is a display screen displayed on the display device 28.
FIG. 18 Provided in one embodiment of the present invention 3 is a display screen displayed on the display device 28.
FIG. 19 is a flowchart showing a processing procedure of a start program (2) of the soil volume management device 27 shown in FIG. 2;
20 is a flowchart showing a processing procedure of a work management program (2) of the work management apparatus 27 shown in FIG.
FIG. 21 is a flowchart showing a processing procedure of a work management program (2) of the work management apparatus 27 shown in FIG. 2;
FIG. 22 shows in FIG. Table 3 is a display screen displayed on the display device 28.
[Explanation of symbols]
1 Excavator
2 Unloading ship
3 Barge ship
4 Hoppers
5 Pressure feed pump
6 administration departments
11 Boom
12 Boom cylinder
121 Bottom room
122 Rod chamber
123,124 Pressure sensor
13 buckets
17 Bucket control lever
18 Turning control lever
19 Load measuring device
195b Work detection program
20 Boom angle sensor
21 Teaching start button
24,26 radio
25 Management device
27 Soil volume management device
275a Start program
275b Work management program
28 Display device
35 Measurement start button
36 Measurement end button
37 Print button
38 Program end button

Claims (7)

In the work amount display device of the hydraulic excavator that displays the work amount of the work that is loaded into the processing place by the hydraulic excavator on the unloading ship,
The work amount display device includes an excavation status screen that displays the work amount of at least one hydraulic excavator for each transport ship , a date display screen that displays the date and current time, and the work amount of all excavators per day. setting a history screen that displays a daily work report screen displaying the work of magnitude proportional to the working time of the hydraulic excavator every carrier, the specific gravity display unit and specific gravity specific gravity of the workpiece is displayed the A work amount display device for a hydraulic excavator, characterized in that a specific gravity display screen on which a specific gravity value setting button is displayed is displayed on one screen. In claim 1,
A measurement start button for starting the measurement of the work hydraulic excavator is turned the workpiece to the machining location, a measurement end button to end the measurement of the work, for printing the amount of work each day of the hydraulic excavator A work amount display device for a hydraulic excavator, wherein a daily report output button and a program end button for ending the processing program for measuring the work amount are displayed on one screen. In claim 1 or claim 2,
The Agetsuchi status screen includes a bucket internal load of the oil pressure shovels you change from moment to moment, and the volume of the workpiece 1 cup per hydraulic excavator was fed to the machining location, the processing of the hydraulic excavator and put number and cumulative volume of the workpiece to a location, a hydraulic excavator workload display device, characterized in that the volume is turned per certain time, is displayed. In claim 1 or claim 2,
When said hydraulic excavator are installed two or more, the Agetsuchi status screen includes a load of the bucket inside the hydraulic excavator constantly changing for each hydraulic excavator, a hydraulic excavator is working location of each hydraulic excavator total volume and the volume of the workpiece was charged, and the charged number and cumulative volume of the workpiece to accumulated by said work spot for each hydraulic excavator, a total charged number of daily submitted by all of the hydraulic excavator And a work amount display device for a hydraulic excavator. In claim 1 or claim 2,
Before Ki履 history screen, and the number of vessels of the carrier, which has been carrying the workpiece, and the start time to start scooping have out from the first carrier, and the end time you have finished out the scoop from the last carrier, all-day work and hydraulic excavator workload display device characterized you to view the total volume and the total charged number of charged workpiece to the machining location. And the measurement start button in 請 Motomeko 2, wherein the measurement end button, the daily report output button, a hydraulic shovel work quantity display device, characterized in that the display color to be turned is configured to invert . In 請 Motomeko 2,
The work amount display device for a hydraulic excavator is characterized in that when the program end button is turned on, the device is turned off .

Images