公开(公告)号：US5305426A

公开(公告)日：1994-04-19

申请号：US883040

申请日：1992-05-14

申请人： Fujiko Ushioda ,  Toshiko Adachi ,  Kazushi Yamamoto

发明人： Fujiko Ushioda ,  Toshiko Adachi ,  Kazushi Yamamoto

IPC分类号： G01D7/00 ,  G05B23/02 ,  G06F9/44 ,  G06N5/04 ,  G08B23/00 ,  G08B31/00 ,  G21C17/00 ,  G21D3/04 ,  G06F15/20 ,  G21D1/00

CPC分类号： G21D3/04 ,  G05B23/0229 ,  G05B23/0272 ,  G21C17/00 ,  G21Y2002/206 ,  G21Y2004/403 ,  Y02E30/40 ,  Y10S706/914 ,  Y10S706/915

摘要： In response to an alarm, an inference engine in a plant operation support system calculates reliabilities of the appearance of phenomenons based on process data from the plant and a knowledge data base. The knowledge data base refers to diagnosis information and a fault tree. The value obtained from the calculation is compared with a threshold value inherent to each phenomenon. If the calculated value is larger than the threshold value, it is determined that the phenomenon has appeared. The appeared phenomenons are successively displayed on the screen of a display unit in order starting from the alarm phenomenon down to the subordinate phenomenons. An operation guidance corresponding to the displayed phenomenon is retrieved from a guidance data base and is displayed on the display unit.

摘要翻译： 响应于报警，工厂操作支持系统中的推理机基于来自工厂的过程数据和知识数据库来计算现象外观的可靠性。 知识数据库是指诊断信息和故障树。 将从计算获得的值与每种现象固有的阈值进行比较。 如果计算值大于阈值，则确定出现现象。 出现的现象依次显示在显示单元的屏幕上，从报警现象开始到下级现象。 从引导数据库中检索与所显示的现象相对应的操作指导，并显示在显示单元上。