-
公开(公告)号：US20090327810A1
公开(公告)日：2009-12-31
申请号：US12307887
申请日：2007-07-10
CPC分类号： H04L41/0631 , H04L41/16
摘要： Traditionally, in fault diagnosis systems, the user is instructed to investigate symptoms exhaustively until a single fault is identified. A more advanced known system recognises that it may be cost effective to address a fault that has been determined as being likely but not certain to exist; in preference to further examination of the symptoms. However this technique has been found not to work well when a symptom is known to be only sometimes associated with a fault. The invention addresses this problem by 1) deriving a first value, for each fault, of probable benefit of acting on that fault and for identifying the fault for which that value is greatest, 2) deriving a second value, for each symptom, of probable benefit of an investigation into that symptom and for identifying the symptom for which that second value is greatest, and 3) comparing the greatest first value with the greatest second value thereby determining when to switch from investigating symptoms to acting upon a fault. By employing the invention the aforementioned problem can be overcome because the system calculates the extent to which each symptom examination would improve the situation, assuming no further symptom investigations are used.
摘要翻译： 传统上，在故障诊断系统中，用户被指示彻底调查症状，直到识别出单个故障。 更先进的已知系统认识到，解决已被确定为可能但不确定存在的错误可能具有成本效益; 优于进一步检查症状。 然而，当已知症状仅有时与故障相关时，已经发现这种技术不能很好地工作。 本发明通过以下方式解决了这个问题：1）为每个故障导出作用于该故障的可能益处的第一值，以及识别该值最大的故障，2）针对每个症状得出可能的第二个值 对这种症状进行调查的益处，并确定第二个值最大的症状，以及3）将最大的第一个值与最大的第二个值进行比较，从而确定何时从调查症状转为作用于故障。 通过采用本发明，可以克服上述问题，因为系统计算每个症状检查将改善情况的程度，假设没有使用进一步的症状调查。
-
公开(公告)号：US20050114743A1
公开(公告)日：2005-05-26
申请号：US10474229
申请日：2003-07-15
申请人： Timothy Moorhouse
发明人： Timothy Moorhouse
摘要： A fault diagnosis system for diagnosing faults in complex equipment. The system includes means for storing a set of diagnostic signatures which relates a set of known faults which may occur in the equipment to respective fault symptoms which are deemed indicative of said known faults; and means for processing the diagnostic signatures and a set of fault symptoms identified for a current state of the equipment to calculate diagnostic data for identifying a fault causing the current state of the equipment. The diagnostic data includes a plurality of values which are indicative of different relative non-zero likelihoods of each of a plurality of different known faults causing the current state of the equipment.
摘要翻译： 用于诊断复杂设备故障的故障诊断系统。 该系统包括用于存储一组诊断签名的装置，其将可能在设备中发生的一组已知故障与相应的故障症状相关联，该故障症状被认为是指示所述已知故障; 以及用于处理针对设备的当前状态识别的诊断签名和一组故障症状的装置，以计算用于识别导致设备的当前状态的故障的诊断数据。 诊断数据包括指示导致设备的当前状态的多个不同已知故障中的每一个的不同相对非零似然性的多个值。
-
搜索结果
2 条记录 (耗时 0.011 秒)
