公开(公告)号：US20110295545A1

公开(公告)日：2011-12-01

申请号：US13206813

申请日：2011-08-10

申请人： Ravi Kant ,  John P. Miller ,  Tautho H. Nguyen

发明人： Ravi Kant ,  John P. Miller ,  Tautho H. Nguyen

IPC分类号： G06F15/00

CPC分类号： G05B23/021 ,  G05B23/0254

摘要： A system and method for detecting abnormal operation of a hydrocracker includes a model to model the hydrocracker. The model may be configurable to include one or more regression models corresponding to different operating regions of the portion of the hydrocracker. The system and method may also determine if a monitored temperature difference variable deviates significantly from the temperature difference variable predicted by the model. If there is a significant deviation, this may indicate an abnormal operation.

摘要翻译： 用于检测加氢裂化器异常操作的系统和方法包括模拟加氢裂化器的模型。 该模型可以被配置为包括对应于加氢裂化器部分的不同操作区域的一个或多个回归模型。 系统和方法还可以确定所监测的温度差变量是否显着偏离由模型预测的温差变量。 如果存在显着偏差，则可能表示异常操作。

公开(公告)号：US20080082308A1

公开(公告)日：2008-04-03

申请号：US11863169

申请日：2007-09-27

申请人： Ravi Kant ,  John P. Miller ,  Tautho H. Nguyen

发明人： Ravi Kant ,  John P. Miller ,  Tautho H. Nguyen

IPC分类号： G06G7/58

CPC分类号： G05B23/021 ,  G05B23/0254

摘要： A system and method for detecting abnormal operation of a hydrocracker includes a model to model the hydrocracker. The model may be configurable to include one or more regression models corresponding to different operating regions of the portion of the hydrocracker. The system and method may also determine if a monitored temperature difference variable deviates significantly from the temperature difference variable predicted by the model. If there is a significant deviation, this may indicate an abnormal operation.

摘要翻译： 用于检测加氢裂化器异常操作的系统和方法包括模拟加氢裂化器的模型。 该模型可以被配置为包括对应于加氢裂化器部分的不同操作区域的一个或多个回归模型。 系统和方法还可以确定所监测的温度差变量是否显着偏离由模型预测的温差变量。 如果存在显着偏差，则可能表示异常操作。

公开(公告)号：US08606544B2

公开(公告)日：2013-12-10

申请号：US11492460

申请日：2006-07-25

申请人： John P. Miller ,  Ravi Kant

发明人： John P. Miller ,  Ravi Kant

IPC分类号： G06F11/30

CPC分类号： G05B17/02 ,  G05B23/0245

摘要： In methods and systems that may facilitate detecting abnormal operation in a process plant, values of a process variable are analyzed to determine whether they significantly deviate from expected values. If there is a significant deviation, an indicator may be generated. Analyzing the process variable may include, for example, utilizing a plurality of thresholds determined based on statistics of the process variable. Analyzing the process variable may also include, for example, determining whether a first number of values of the process variable are in a first region, and whether a second number of values are in a second region.

摘要翻译： 在可能有助于检测过程工厂异常操作的方法和系统中，分析过程变量的值以确定它们是否显着偏离预期值。 如果存在明显的偏差，则可能会产生指示。 分析过程变量可以包括例如利用基于过程变量的统计确定的多个阈值。 分析过程变量还可以包括例如确定过程变量的第一数量值是否在第一区域中，以及第二数量的值是否在第二区域中。

公开(公告)号：US20080116051A1

公开(公告)日：2008-05-22

申请号：US11862864

申请日：2007-09-27

申请人： John P. Miller ,  Ravi Kant

发明人： John P. Miller ,  Ravi Kant

IPC分类号： C10B47/00 ,  G06F15/00

CPC分类号： C10G75/00 ,  C10G11/187

摘要： A method and system for detecting and/or predicting abnormal solids buildup in a main fractionator bottom of a fluid catalytic cracking system measures one or more process parameters of the fluid catalytic cracking system (such as a differential pressure across a reactor cyclone, a noise after the main fractionator bottom, a heat transfer at the steam generator, and/or a differential pressure across the main fractionator) and determines abnormal solids buildup when the measured process parameter(s) changes significantly from a baseline value. The method and system implements algorithms using computing devices to detect or predict an abnormal condition based on the change in the process parameter.

摘要翻译： 用于检测和/或预测流化催化裂化系统的主分馏塔底部异常固体积聚的方法和系统测量流化催化裂化系统的一个或多个工艺参数（例如反应器旋风分离器之间的差压， 主分馏器底部，蒸汽发生器处的热传递和/或主分馏器上的压差），并且当测量的过程参数从基线值显着变化时，确定异常固体积聚。 该方法和系统使用计算设备实现基于过程参数的变化来检测或预测异常状况的算法。

公开(公告)号：US20080052039A1

公开(公告)日：2008-02-28

申请号：US11492460

申请日：2006-07-25

申请人： John P. Miller ,  Ravi Kant

发明人： John P. Miller ,  Ravi Kant

IPC分类号： G06F19/00 ,  G06F17/40 ,  G06F17/10

CPC分类号： G05B17/02 ,  G05B23/0245

摘要： In methods and systems that may facilitate detecting abnormal operation in a process plant, values of a process variable are analyzed to determine whether they significantly deviate from expected values. If there is a significant deviation, an indicator may be generated. Analyzing the process variable may include, for example, utilizing a plurality of thresholds determined based on statistics of the process variable. Analyzing the process variable may also include, for example, determining whether a first number of values of the process variable are in a first region, and whether a second number of values are in a second region.

摘要翻译： 在可能有助于检测过程工厂异常操作的方法和系统中，分析过程变量的值以确定它们是否显着偏离预期值。 如果存在明显的偏差，则可能会产生指示。 分析过程变量可以包括例如利用基于过程变量的统计确定的多个阈值。 分析过程变量还可以包括例如确定过程变量的第一数量值是否在第一区域中，以及第二数量的值是否在第二区域中。

公开(公告)号：US20090093892A1

公开(公告)日：2009-04-09

申请号：US11973165

申请日：2007-10-05

申请人： Ravi Kant ,  John P. Miller

发明人： Ravi Kant ,  John P. Miller

IPC分类号： G05B13/04

CPC分类号： G05B17/02 ,  G05B13/04 ,  G05B23/0221 ,  G05B23/0254

摘要： A system for preventing abnormal situations in process plants is provided. A polynomial regression model is employed to predict values of a monitored variable based on measured samples of a load variable. An abnormal situation is detected when a predicted value of the monitored variable differs from a measured value of the monitored variable by more than a predetermined amount. The system employs one or more algorithms for automatically determining an optimal order or degree of the polynomial regression model.

摘要翻译： 提供了一种用于防止加工厂异常情况的系统。 多项式回归模型用于基于负载变量的测量样本来预测监测变量的值。 当监视变量的预测值与监视变量的测量值相差大于预定量时，检测到异常情况。 该系统采用一种或多种算法来自动确定多项式回归模型的最优顺序或程度。

公开(公告)号：US20080120060A1

公开(公告)日：2008-05-22

申请号：US11861985

申请日：2007-09-26

申请人： Ravi Kant ,  John P. Miller

发明人： Ravi Kant ,  John P. Miller

IPC分类号： C10B49/00 ,  G06F17/18 ,  G01L19/00 ,  G06F15/00

CPC分类号： G05B23/0235 ,  C10G11/187 ,  G01M3/3263

摘要： A method and system for detecting and/or predicting abnormal levels of catalyst loss in a fluid catalytic cracking unit. The method and system measures a differential pressure across portions of a fluid catalytic cracker, such as a reactor cyclone or a regenerator cyclone, and determines abnormal catalyst loss when the differential pressure changes significantly from a baseline differential pressure. The claimed method and system implements algorithms using computing devices to detect or predict an abnormal condition based on the change in a monitored differential pressure in a fluid catalytic cracking unit.

摘要翻译： 用于检测和/或预测流化催化裂化装置中催化剂损失异常水平的方法和系统。 该方法和系统测量流体催化裂化器（例如反应器旋风分离器或再生器旋风分离器）的各部分的压差，并且当差压显着偏离基线压差时，确定异常的催化剂损失。 所要求保护的方法和系统使用计算装置实现基于流体催化裂化装置中所监测压差的变化来检测或预测异常状况的算法。

公开(公告)号：US20080027677A1

公开(公告)日：2008-01-31

申请号：US11492347

申请日：2006-07-25

申请人： John P. Miller ,  Ravi Kant

发明人： John P. Miller ,  Ravi Kant

IPC分类号： G21C17/00

CPC分类号： G05B19/4184 ,  G05B2219/32058 ,  G05B2219/33314 ,  G05B2219/34465 ,  G05B2219/34477 ,  Y02P90/12 ,  Y02P90/14 ,  Y02P90/86

摘要： In methods and systems that may facilitate detecting abnormal operation in a process plant, values of a process variable are analyzed to determine whether they significantly deviate from expected values. If there is a significant deviation, an indicator may be generated. Analyzing the process variable may include, for example, determining whether a number of values of the process variable are increasingly deviating from expected values, or determining whether the process variable is cycling. Analyzing the process variable may also include, for example, processing and analyzing the process variable to determine whether the process is in a normal state, one or more abnormal states, or an indeterminate state.

摘要翻译： 在可能有助于检测过程工厂异常操作的方法和系统中，分析过程变量的值以确定它们是否显着偏离预期值。 如果存在明显的偏差，则可能会产生指示。 分析过程变量可以包括例如确定过程变量的值的数量是否越来越偏离期望值，或者确定过程变量是否循环。 分析过程变量还可以包括例如处理和分析过程变量以确定过程是处于正常状态，一个或多个异常状态还是不确定状态。

公开(公告)号：US07657399B2

公开(公告)日：2010-02-02

申请号：US11492347

申请日：2006-07-25

申请人： John P. Miller ,  Ravi Kant

发明人： John P. Miller ,  Ravi Kant

IPC分类号： G06F11/30

CPC分类号： G05B19/4184 ,  G05B2219/32058 ,  G05B2219/33314 ,  G05B2219/34465 ,  G05B2219/34477 ,  Y02P90/12 ,  Y02P90/14 ,  Y02P90/86

摘要： In methods and systems that may facilitate detecting abnormal operation in a process plant, values of a process variable are analyzed to determine whether they significantly deviate from expected values. If there is a significant deviation, an indicator may be generated. Analyzing the process variable may include, for example, determining whether a number of values of the process variable are increasingly deviating from expected values, or determining whether the process variable is cycling. Analyzing the process variable may also include, for example, processing and analyzing the process variable to determine whether the process is in a normal state, one or more abnormal states, or an indeterminate state.

摘要翻译： 在可能有助于检测过程工厂异常操作的方法和系统中，分析过程变量的值以确定它们是否显着偏离预期值。 如果存在明显的偏差，则可能会产生指示。 分析过程变量可以包括例如确定过程变量的值的数量是否越来越偏离期望值，或者确定过程变量是否循环。 分析过程变量还可以包括例如处理和分析过程变量以确定过程是处于正常状态，一个或多个异常状态还是不确定状态。

公开(公告)号：US10029170B1

公开(公告)日：2018-07-24

申请号：US15269274

申请日：2016-09-19

申请人： John P. Miller

发明人： John P. Miller

IPC分类号： A63F1/00 ,  G07F17/32 ,  A63F3/00 ,  A63F1/06

摘要： A casino table poker game where all cards are dealt face-up and the dealer plays a hand. Players each place an ante wager and are initially dealt a partial face-up poker hand and the dealer is dealt a complete face-up poker hand. If the dealer's poker hand meets or exceeds a kick out threshold, the dealer folds her poker hand. The kick out threshold can vary based on the number of players in the game. Then, from lowest to highest rank of partial face-up poker hands, players can fold or pay an additional wager to receive additional cards to complete their face-up poker hand. The pot is awarded to the dealer or player with the best poker hand according to a predetermined set of poker game rules.