Title: Diagnosis apparatus
Application Number: 200610163161 Application Date: 2006.11.29
Publication Number: 1975710 Publication Date: 2007.06.06
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G06F17/00;G01M19/00;G01M17/007
Applicant(s) Name: Hitachi Ltd. Address:
Inventor(s) Name: Suzuki Hideaki;Miyazaki Taizo;Tanikoshi Koichiro
Attorney & Agent: qurui
Abstract:
    An object of the present invention is to provide a diagnosis apparatus for diagnosing state of equipment which estimates the state of the equipment based on the time series information of the equipment considering not only the operation state of the equipment but also the operation environment and the operation condition, and diagnoses the state of the equipment according to an estimated state. The diagnosis apparatus for diagnosing state of equipment includes an interval estimation unit which receives time series information from diagnosis object equipment and detects a change point of the time series information, a state estimation unit which receives the time series information from the diagnosis object equipment and change point information from the interval estimation unit, divides the time series information temporally with the change point as a boundary, and estimates a state of the equipment from before and after relation of an interval or relation with another time series information per divided interval, and an equipment diagnosis unit which diagnoses the equipment according to an estimated state.
Time: 8