PREDICTION OF FUNCTIONAL AVAILABILITY OF COMPLEX SYSTEM
    1.
    发明申请
    PREDICTION OF FUNCTIONAL AVAILABILITY OF COMPLEX SYSTEM 有权
    复合系统功能预测的预测

    公开(公告)号:US20090327202A1

    公开(公告)日:2009-12-31

    申请号:US12165440

    申请日:2008-06-30

    IPC分类号: G06N7/02

    CPC分类号: G06N5/046 G06N7/02 Y10S706/90

    摘要: A method, system, and computer program product for predicting the functional availability of a complex system is provided. Parameters of the complex system are converted from a plurality of binary values to at least one prognostic vector. At least a portion of a binary input expression is converted into an equivalent fuzzy output expression, the fuzzy output expression operable on the at least one prognostic vector.

    摘要翻译: 提供了一种用于预测复杂系统的功能可用性的方法,系统和计算机程序产品。 将复数系统的参数从多个二进制值转换为至少一个预测向量。 将二进制输入表达式的至少一部分转换为等价的模糊输出表达式,模糊输出表达式可在至少一个预测向量上操作。

    Fault splitting algorithm
    2.
    发明授权
    Fault splitting algorithm 有权
    故障分割算法

    公开(公告)号:US08175846B2

    公开(公告)日:2012-05-08

    申请号:US12366472

    申请日:2009-02-05

    IPC分类号: G06F19/00

    CPC分类号: G06Q50/22 G06F19/00 G16H50/20

    摘要: The present application relates to a method of splitting a fault condition including receiving evidence observations of a monitored system from monitors connected in a many-to-many relationship to the failure modes, generating a fault condition, computing a relative probability of failure for each failure mode in the fault condition. When there is more than one failure mode in the fault condition, the method includes computing a relative probability of each pair of failure modes in the fault condition, ranking the computed relative probabilities of the individual failure modes and the computed relative probabilities of the pairs of failure modes. If the highest ranked failure mode is a pair of failure modes, the fault condition is split based on the failure modes in the highest ranked pair of failure modes are split. If the highest ranked failure mode is an individual failure mode, a failure is isolated based on the ranking.

    摘要翻译: 本申请涉及一种将故障条件分解的方法,包括从多对多关系的监视器接收监视系统的证据观察到故障模式,产生故障状况,计算每个故障的相对故障概率 模式处于故障状态。 当故障状态有多种故障模式时,该方法包括计算故障状态下每对故障模式的相对概率,对各个故障模式的计算相对概率进行排序,计算出相应故障模式的相对概率 故障模式。 如果排名最高的故障模式是一对故障模式,则基于最高排序失败模式的故障模式分为故障状态。 如果排名最高的故障模式是单个故障模式,则基于排名隔离故障。

    METHOD FOR COMPUTING THE RELATIVE LIKELIHOOD OF FAILURES
    3.
    发明申请
    METHOD FOR COMPUTING THE RELATIVE LIKELIHOOD OF FAILURES 有权
    计算失败相对偏差的方法

    公开(公告)号:US20100198771A1

    公开(公告)日:2010-08-05

    申请号:US12366475

    申请日:2009-02-05

    IPC分类号: G06N5/02 G06F11/30

    CPC分类号: G05B23/024

    摘要: A method for determining relative likelihood of a failure mode is provided. The method comprises receiving evidence observations of a monitored system from monitors connected in a many-to-many relationship to the failure modes, generating a fault condition including states of all failure modes that are connected to the monitors, and computing a relative probability of failure for each failure mode. The fault condition is generated for a reference model of the monitored system and is based on the received evidence observations. The relative probability of failure for each failure mode is based on a false alarm probability, a detection probability, and a ratio of prior probabilities of a candidate hypothesis to a null hypothesis of no active failure mode.

    摘要翻译: 提供了一种用于确定故障模式的相对似然性的方法。 该方法包括从与许多关系的故障模式连接的监视器接收被监视系统的证据观察,产生包括连接到监视器的所有故障模式的状态的故障状况,以及计算相对故障概率 对于每个故障模式。 为监控系统的参考模型生成故障条件,并基于收到的证据观察结果。 每个故障模式的相对故障概率基于假警报概率,检测概率以及候选假设的先验概率与无主动故障模式的零假设的比率。

    INTERMITTENT FAULT DETECTION AND REASONING
    5.
    发明申请
    INTERMITTENT FAULT DETECTION AND REASONING 审中-公开
    间歇性故障检测和原因

    公开(公告)号:US20100082197A1

    公开(公告)日:2010-04-01

    申请号:US12241774

    申请日:2008-09-30

    IPC分类号: G06F19/00

    摘要: A method for diagnostic reasoning of faults appearing in a vehicle health monitoring system (VHM) is provided. One of alternatively a signal mode or a failure mode state is identified based on an input. If a signal is identified, the signal is queried to determine if the signal indicts a failure mode. If the signal indicts the failure mode, an intermittent watch flag is set for the failure mode. A count representing a number of occurrences of the signal as an intermittent fault is incremented. It is determined if the count exceeds a predetermined threshold. If the count exceeds the predetermined threshold, the intermittent fault is determined to be a permanent fault.

    摘要翻译: 提供了一种在车辆健康监测系统(VHM)中出现故障的诊断推理方法。 基于输入来识别信号模式或故障模式状态之一。 如果识别信号,则查询信号以确定信号是否指示故障模式。 如果信号指示故障模式,则为故障模式设置间歇监视标志。 表示作为间歇故障的信号发生次数的计数增加。 确定计数是否超过预定阈值。 如果计数超过预定阈值,则断定故障被确定为永久故障。

    Method for computing the relative likelihood of failures
    6.
    发明授权
    Method for computing the relative likelihood of failures 有权
    计算失败相对可能性的方法

    公开(公告)号:US08224765B2

    公开(公告)日:2012-07-17

    申请号:US12366475

    申请日:2009-02-05

    IPC分类号: G06F11/30 G06N5/02

    CPC分类号: G05B23/024

    摘要: A method for determining relative likelihood of a failure mode is provided. The method comprises receiving evidence observations of a monitored system from monitors connected in a many-to-many relationship to the failure modes, generating a fault condition including states of all failure modes that are connected to the monitors, and computing a relative probability of failure for each failure mode. The fault condition is generated for a reference model of the monitored system and is based on the received evidence observations. The relative probability of failure for each failure mode is based on a false alarm probability, a detection probability, and a ratio of prior probabilities of a candidate hypothesis to a null hypothesis of no active failure mode.

    摘要翻译: 提供了一种用于确定故障模式的相对似然性的方法。 该方法包括从与许多关系的故障模式连接的监视器接收被监视系统的证据观察,产生包括连接到监视器的所有故障模式的状态的故障状况,以及计算相对故障概率 对于每个故障模式。 为监控系统的参考模型生成故障条件,并基于收到的证据观察结果。 每个故障模式的相对故障概率基于假警报概率,检测概率以及候选假设的先验概率与无主动故障模式的零假设的比率。

    Prediction of functional availability of complex system
    8.
    发明授权
    Prediction of functional availability of complex system 有权
    复杂系统功能可用性预测

    公开(公告)号:US08195595B2

    公开(公告)日:2012-06-05

    申请号:US12165440

    申请日:2008-06-30

    IPC分类号: G06F9/44 G06N7/02 G06N7/06

    CPC分类号: G06N5/046 G06N7/02 Y10S706/90

    摘要: A method, system, and computer program product for predicting the functional availability of a complex system is provided. Parameters of the complex system are converted from a plurality of binary values to at least one prognostic vector. At least a portion of a binary input expression is converted into an equivalent fuzzy output expression, the fuzzy output expression operable on the at least one prognostic vector.

    摘要翻译: 提供了一种用于预测复杂系统的功能可用性的方法,系统和计算机程序产品。 将复数系统的参数从多个二进制值转换为至少一个预测向量。 将二进制输入表达式的至少一部分转换为等价的模糊输出表达式,模糊输出表达式可在至少一个预测向量上操作。

    Recursive structure for diagnostic model
    9.
    发明授权
    Recursive structure for diagnostic model 有权
    诊断模型的递归结构

    公开(公告)号:US08170968B2

    公开(公告)日:2012-05-01

    申请号:US12192700

    申请日:2008-08-15

    IPC分类号: G06F17/00 G06N5/00

    CPC分类号: G06N5/02 G05B23/0251

    摘要: A recursive mapping structure for diagnostic models is provided. A parent diagnostic model includes a first input module, a first output module, a first monitor module coupled to the first input and first output modules, and a first propagation module coupled between the first input and first output modules. A child diagnostic model includes a second input module, a second output module, a second monitor module coupled to the second input and second output modules, and a second propagation module coupled between the second input and second output modules, wherein the second monitor module is coupled to the first monitor module.

    摘要翻译: 提供了诊断模型的递归映射结构。 父诊断模型包括耦合到第一输入和第一输出模块的第一输入模块,第一输出模块,第一监控模块以及耦合在第一输入模块和第一输出模块之间的第一传播模块。 儿童诊断模型包括第二输入模块,第二输出模块,耦合到第二输入和第二输出模块的第二监测模块,以及耦合在第二输入模块和第二输出模块之间的第二传播模块,其中第二监测模块是 耦合到第一监视器模块。