| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To support an operator in operating equipment and an equipment manager in maintaining the equipment by predicting the failure of the equipment, and accurately and quickly tracking the cause of the failure to point out the location of the failure. <P>SOLUTION: This diagnostic device for equipment includes a history data analyzing means 43 which, should the equipment fail, analyzes the tendency of changes in history data leading to the failure, from measurement data retained in a process history database 42; and an equipment trouble progress monitoring means 44 for predicting any failure by monitoring changes in the history of the measurement data of equipment of the same kind from the analysis results. The device further includes a failure time distribution type specifying means 46 for specifying the type of distribution of each equipment failure data group of each building by analyzing a failure database 45; a distribution parameter estimating means 47 for determining the distribution parameter of each type of failure data group by combining the failure data of the equipment of the same kind from type-based failure databases 45N-45EX stored for each different type based on the identification result; and an equipment diagnosing means 48 for predicting any failure of the equipment in each building and detecting where trouble is progressing according to information coming from the monitoring means 44 and the estimating means 47. <P>COPYRIGHT: (C)2004,JPO</p> |
