Title:
OPERATION MACHINE MONITORING DIAGNOSIS DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/092830
Kind Code:
A1
Abstract:
Provided is an operation machine monitoring diagnosis device wherein, even if there is a strong similarity between input signals during normal operation and those during abnormal operation, misjudgment is prevented, thereby permitting diagnosis to be conducted appropriately.
The monitoring diagnosis device is equipped with a sorted information memory unit (102) wherein reference sorted information is memorized; a frequency information memory unit (105) wherein reference frequency information is memorized; a first data sorting unit (101) wherein reference sorted information is read from the sorted information memory unit, wherein operating data detected by a plurality of sensors and inputted on a time series basis are compared with reference sorted information and are sorted, and wherein sorted operating data information is generated; a frequency comparison unit (104) wherein sorted operating data information is totalized, wherein appearance frequency information for individual sets of operating data sorted is added, thereby generating operating data information, wherein reference frequency information is read from the frequency information memory unit, and wherein operating data frequency information and reference frequency information are compared, thereby generating operating data frequency comparison information; and an abnormality diagnosis unit (103) wherein sorted operating data information and operating data frequency information are used to conduct abnormality diagnosis of operation machines.
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Inventors:
SUZUKI Hideaki (Hitachi Ltd., 1-1, Ohmikacho 7-chome, Hitachi-sh, Ibaraki 92, 〒3191292, JP)
鈴木 英明 (〒92 茨城県日立市大みか町七丁目１番１号 株式会社日立製作所 日立研究所内 Ibaraki, 〒3191292, JP)
FURUNO Yoshinori (Tsuchiura Works, 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
古野 義紀 (〒13 茨城県土浦市神立町６５０番地 日立建機株式会社土浦工場内 Ibaraki, 〒3000013, JP)
NAKAMURA Kozo (Hitachi Ltd., 1-1, Ohmikacho 7-chome, Hitachi-sh, Ibaraki 92, 〒3191292, JP)
鈴木 英明 (〒92 茨城県日立市大みか町七丁目１番１号 株式会社日立製作所 日立研究所内 Ibaraki, 〒3191292, JP)
FURUNO Yoshinori (Tsuchiura Works, 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
古野 義紀 (〒13 茨城県土浦市神立町６５０番地 日立建機株式会社土浦工場内 Ibaraki, 〒3000013, JP)
NAKAMURA Kozo (Hitachi Ltd., 1-1, Ohmikacho 7-chome, Hitachi-sh, Ibaraki 92, 〒3191292, JP)
Application Number:
JP2010/051172
Publication Date:
August 04, 2011
Filing Date:
January 28, 2010
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACHINERY CO., LTD. (5-1 Koraku 2-chome, Bunkyo-ku Tokyo, 63, 〒1128563, JP)
日立建機株式会社 (〒63 東京都文京区後楽二丁目５番１号 Tokyo, 〒1128563, JP)
SUZUKI Hideaki (Hitachi Ltd., 1-1, Ohmikacho 7-chome, Hitachi-sh, Ibaraki 92, 〒3191292, JP)
鈴木 英明 (〒92 茨城県日立市大みか町七丁目１番１号 株式会社日立製作所 日立研究所内 Ibaraki, 〒3191292, JP)
FURUNO Yoshinori (Tsuchiura Works, 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
古野 義紀 (〒13 茨城県土浦市神立町６５０番地 日立建機株式会社土浦工場内 Ibaraki, 〒3000013, JP)
日立建機株式会社 (〒63 東京都文京区後楽二丁目５番１号 Tokyo, 〒1128563, JP)
SUZUKI Hideaki (Hitachi Ltd., 1-1, Ohmikacho 7-chome, Hitachi-sh, Ibaraki 92, 〒3191292, JP)
鈴木 英明 (〒92 茨城県日立市大みか町七丁目１番１号 株式会社日立製作所 日立研究所内 Ibaraki, 〒3191292, JP)
FURUNO Yoshinori (Tsuchiura Works, 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
古野 義紀 (〒13 茨城県土浦市神立町６５０番地 日立建機株式会社土浦工場内 Ibaraki, 〒3000013, JP)
International Classes:
E02F9/26; G05B23/02
Attorney, Agent or Firm:
KASUGA Yuzuru (Torii-nihonbashi Bldg, 4-1 Nihonbashi-honcho 3-chome, Chuo-k, Tokyo 23, 〒1030023, JP)
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Claims: