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1. 发明授权

US06721609B1 Integrated optimal model predictive control in a process control system 有权
标题翻译：过程控制系统中的综合最佳模型预测控制
公开(公告)号：US06721609B1
公开(公告)日：2004-04-13
申请号：US09593327
申请日：2000-06-14
申请人： Wilhelm K. Wojsznis , Terrence L. Blevins , Richard C. Seeman , Mark J. Nixon
发明人： Wilhelm K. Wojsznis , Terrence L. Blevins , Richard C. Seeman , Mark J. Nixon
IPC分类号： G05B1302
CPC分类号： G05B13/0275 , G05B13/048
摘要： A model predictive controller having a set of inputs adapted to receive process output signals and further having a set of outputs adapted to supply process input signals to process control devices is configured to perform integrated optimal model predictive control. The controller provides integrated optimal control using a feedback path that couples a selected output to an input having a setpoint that is equal to the constraint limit of the selected output. The controller maintains the selected output at its constraint limit until one of the outputs, other than the selected output, is going to reach or exceed the associated constraint limit for that output. When the output is going to reach or exceed the associated constraint limit for that output, the controller relaxes the setpoint until the output is no longer going to reach or exceed the associated constraint limit for that output.
摘要翻译：具有适于接收处理输出信号并且还具有适于向处理控制装置提供过程输入信号的一组输出的一组输入的模型预测控制器被配置为执行集成的最佳模型预测控制。控制器使用将所选择的输出耦合到具有等于所选输出的约束极限的设定点的输入的反馈路径来提供集成的最佳控制。控制器将所选择的输出保持在其约束极限，直到除了所选输出之外的输出之一将达到或超过该输出的相关约束极限。当输出达到或超过该输出的相关约束限制时，控制器放松设定值，直到输出不再达到或超过该输出的相关约束极限。

2. 发明申请

US20120083917A1 PREDICTED FAULT ANALYSIS 有权
标题翻译：预测故障分析
公开(公告)号：US20120083917A1
公开(公告)日：2012-04-05
申请号：US13279881
申请日：2011-10-24
申请人： Ling Zhou , Paul K. Daly , Robert B. Havekost , Terrence L. Blevins , Wilhelm K. Wojsznis , Mark J. Nixon , Christopher J. Worek , Paul R. Muston
发明人： Ling Zhou , Paul K. Daly , Robert B. Havekost , Terrence L. Blevins , Wilhelm K. Wojsznis , Mark J. Nixon , Christopher J. Worek , Paul R. Muston
IPC分类号： G06G7/66
CPC分类号： G05B13/048 , G05B19/41875 , G05B23/0283 , G05B2219/32187 , G05B2219/32194 , Y02P90/22
摘要： Example methods, apparatuses and systems to correlate candidate factors to a predicted fault in a process control system are disclosed. Techniques may include obtaining a value associated with a particular factor corresponding to a process, and predicting a fault based on the value. A set of candidate factors corresponding to the predicted fault may be determined, and a correlation between the predicted fault and at least one factor from the set may be displayed. Different sections of the display may respectively correspond to the predicted fault and to the at least one factor, and the correlation may be indicated by time aligning the different sections. Modifications to one displayed section may result in automatic modification of other sections to maintain the correlation. A user may select one or more candidate factors to be displayed, and may indicate a particular point of a particular section to obtain additional details.
摘要翻译：公开了将候选因子与过程控制系统中的预测故障相关联的示例性方法，设备和系统。技术可以包括获得与对应于过程的特定因素相关联的值，以及基于该值来预测故障。可以确定对应于预测故障的一组候选因子，并且可以显示预测故障与来自该组的至少一个因子之间的相关性。显示器的不同部分可以分别对应于预测的故障和至少一个因素，并且可以通过对不同部分的时间对准来指示相关性。对一个显示部分的修改可能导致其他部分的自动修改以维持相关性。用户可以选择要显示的一个或多个候选因子，并且可以指示特定部分的特定点以获得附加细节。

3. 发明授权

US09983559B2 Updating and utilizing dynamic process simulation in an operating process environment 有权
公开(公告)号：US09983559B2
公开(公告)日：2018-05-29
申请号：US11537975
申请日：2006-10-02
申请人： Terrence L. Blevins , Wilhelm K. Wojsznis , Mark J. Nixon
发明人： Terrence L. Blevins , Wilhelm K. Wojsznis , Mark J. Nixon
IPC分类号： G06G7/48 , G05B19/042 , G05B17/02 , G06F17/50
CPC分类号： G05B19/0428 , G05B17/02 , G05B2219/23404 , G05B2219/23445 , G06F17/5009
摘要： A simulation system that includes interconnected simulation blocks which use process models to perform simulation activities for a process plant is integrated into a process control environment for the process plant in a manner that makes the simulation system easy to use and easily updated for on-line process simulation. The disclosed simulation system enables future predicted values as well as the current predicted values of process parameters produced by the simulation system to be made available for performance evaluation as well as to guide plant operations. Additionally, the simulation system is connected to the operating process plant to receive various on-line process plant measurements, and uses these measurements to automatically update the process models used in the simulation system, to thereby keep the simulation system coordinated with the actual operating conditions of the process plant.

4. 发明授权

US08055358B2 Multi-objective predictive process optimization with concurrent process simulation 有权
标题翻译：多目标预测过程优化与并发过程仿真
公开(公告)号：US08055358B2
公开(公告)日：2011-11-08
申请号：US11567107
申请日：2006-12-05
申请人： Terrence L. Blevins , Wilhelm K. Wojsznis , Mark J. Nixon , Peter Wojsznis
发明人： Terrence L. Blevins , Wilhelm K. Wojsznis , Mark J. Nixon , Peter Wojsznis
IPC分类号： G05B13/02
CPC分类号： G05B17/02 , G05B13/022 , G05B13/048
摘要： A system and method for controlling a process includes simulating the process and producing a simulated output of the process, developing a set of target values based on measured inputs from the process and based on the simulated output from the process simulator, and producing multiple control outputs configured to control the process based on the set of target values during each operational cycle of the process control system. The simulated outputs include one or more predicted future values up to the steady state of the process.
摘要翻译：用于控制过程的系统和方法包括模拟过程并产生过程的模拟输出，基于来自过程的测量输入并基于来自过程模拟器的模拟输出开发一组目标值，并产生多个控制输出被配置为在过程控制系统的每个操作循环期间基于目标值集合来控制过程。模拟输出包括直到该过程稳定状态的一个或多个预测的未来值。

5. 发明授权

US09046881B2 Updating and utilizing dynamic process simulation in an operating process environment 有权
标题翻译：在操作过程环境中更新和利用动态过程仿真
公开(公告)号：US09046881B2
公开(公告)日：2015-06-02
申请号：US11551134
申请日：2006-10-19
申请人： Terrence L. Blevins , Wilhelm K. Wojsznis , Mark J. Nixon
发明人： Terrence L. Blevins , Wilhelm K. Wojsznis , Mark J. Nixon
IPC分类号： G06G7/48 , G05B15/00 , G05B11/01 , G05B17/02
CPC分类号： G05B19/0428 , G05B17/02 , G05B2219/23404 , G05B2219/23445 , G06F17/5009
摘要： A simulation system that includes interconnected simulation blocks which use process models to perform simulation activities for a process plant is integrated into a process control environment for the process plant in a manner that makes the simulation system easy to use and easily updated for on-line process simulation. The disclosed simulation system enables future predicted values as well as the current predicted values of process parameters produced by the simulation system to be made available for performance evaluation as well as to guide plant operations. Additionally, the simulation system is connected to the operating process plant to receive various on-line process plant measurements, and uses these measurements to automatically update the process models used in the simulation system, to thereby keep the simulation system coordinated with the actual operating conditions of the process plant.
摘要翻译：包括使用过程模型来执行过程工厂的模拟活动的互连仿真模块的模拟系统以使得模拟系统易于使用并且容易更新以用于在线处理的方式被集成到过程工厂的过程控制环境中模拟。所公开的模拟系统使未来预测值以及由模拟系统产生的过程参数的当前预测值可用于性能评估以及指导工厂操作。此外，仿真系统连接到操作过程工厂，以接收各种在线过程工厂测量，并使用这些测量来自动更新模拟系统中使用的过程模型，从而使仿真系统与实际工作条件协调的过程工厂。

6. 发明申请

US20130069792A1 INFERENTIAL PROCESS MODELING, QUALITY PREDICTION AND FAULT DETECTION USING MULTI-STAGE DATA SEGREGATION 有权
标题翻译：使用多级数据分割的感觉过程建模，质量预测和故障检测
公开(公告)号：US20130069792A1
公开(公告)日：2013-03-21
申请号：US13611733
申请日：2012-09-12
申请人： Terrence L. Blevins , Wilhelm K. Wojsznis , Mark J. Nixon , John M. Caldwell
发明人： Terrence L. Blevins , Wilhelm K. Wojsznis , Mark J. Nixon , John M. Caldwell
IPC分类号： G06F17/10 , G08B5/00
CPC分类号： G06F17/18 , G05B17/02 , G05B23/024 , G06F17/16
摘要： A process modeling technique uses a single statistical model developed from historical data for a typical process and uses this model to perform quality prediction or fault detection for various different process states of a process. The modeling technique determines means (and possibly standard deviations) of process parameters for each of a set of product grades, throughputs, etc., compares on-line process parameter measurements to these means and uses these comparisons in a single process model to perform quality prediction or fault detection across the various states of the process. In this manner, a single process model can be used to perform quality prediction or fault detection while the process is operating in any of the defined process stages or states.
摘要翻译：过程建模技术使用从历史数据开发的用于典型过程的单个统计模型，并使用该模型对过程的各种不同过程状态执行质量预测或故障检测。建模技术确定了一组产品等级，吞吐量等中的每一个的工艺参数的平均值（可能是标准偏差），将在线工艺参数测量与这些方法进行比较，并在单个过程模型中使用这些比较来执行质量在过程的各种状态下的预测或故障检测。以这种方式，当过程在任何定义的过程阶段或状态下操作时，可以使用单个过程模型来执行质量预测或故障检测。

7. 发明授权

US06615090B1 Diagnostics in a process control system which uses multi-variable control techniques 有权
标题翻译：使用多变量控制技术的过程控制系统中的诊断
公开(公告)号：US06615090B1
公开(公告)日：2003-09-02
申请号：US09499446
申请日：2000-02-07
申请人： Terrence L. Blevins , Mark J. Nixon , Wilhelm K. Wojsznis
发明人： Terrence L. Blevins , Mark J. Nixon , Wilhelm K. Wojsznis
IPC分类号： G05G1101
CPC分类号： G05B23/0227 , G05B23/027
摘要： A diagnostic tool automatically collects and stores data indicative of a variability parameter, a mode parameter, a status parameter and a limit parameter for a multi-variable function block associated with one or more devices or loops within a process control system, processes the collected data to determine which devices, loops or function blocks have problems that result in reduced performance of the process control system, displays a list of detected problems to an operator and then suggests the use of other, more specific diagnostic tools to further pinpoint or correct the problems. When the diagnostic tool recommends and executes a data intensive application as the further diagnostic tool, it automatically configures a controller of the process control network to collect the data needed for such a tool.
摘要翻译：诊断工具自动地收集和存储指示与过程控制系统内的一个或多个设备或循环相关联的多变量功能块的变量参数，模式参数，状态参数和限制参数的数据，处理收集的数据以确定哪些设备，循环或功能块具有导致过程控制系统的性能降低的问题，向操作者显示检测到的问题的列表，然后建议使用其他更具体的诊断工具来进一步确定或纠正问题。当诊断工具推荐并执行数据密集型应用程序作为其他诊断工具时，它会自动配置过程控制网络的控制器，以收集此类工具所需的数据。

8. 发明授权

US07317953B2 Adaptive multivariable process controller using model switching and attribute interpolation 有权
标题翻译：使用模型切换和属性插值的自适应多变量过程控制器
公开(公告)号：US07317953B2
公开(公告)日：2008-01-08
申请号：US11002158
申请日：2004-12-02
申请人： Wilhelm K. Wojsznis , Terrence L. Blevins , Mark J. Nixon , Peter Wojsznis
发明人： Wilhelm K. Wojsznis , Terrence L. Blevins , Mark J. Nixon , Peter Wojsznis
IPC分类号： G05B13/02
CPC分类号： G05B11/32 , G05B13/048 , G05B17/02
摘要： An adaptive multivariable process control system includes a multivariable process controller, such as a model predictive controller, having a multivariable process model characterized as a set of two or more single-input, single-output (SISO) models and an adaptation system which adapts the multivariable process model. The adaptation system detects changes in process inputs sufficient to start an adaptation cycle and, when such changes are detected, collects process input and output data needed to perform model adaptation. The adaptation system next determines a subset of the SISO models within the multivariable process model which are to be adapted, based on, for example, a determination of which process inputs are most correlated with the error between the actual (measured) process output and the process output developed by the multivariable process model. The adaptation system then performs standard or known model switching and parameter interpolation techniques to adapt each of the selected SISO models. After the adaptation of one or more of the SISO models, the resulting multivariable process model is validated by determining if the adapted multivariable process model has lower modeling error than the current multivariable process model. If so, the adapted multivariable process model is used in the multivariable controller.
摘要翻译：自适应多变量过程控制系统包括多变量过程控制器，例如模型预测控制器，其具有多变量过程模型，其特征在于一组两个或多个单输入单输出（SISO）模型和适应系统多变量过程模型。适应系统检测足够开始适应周期的过程输入的变化，并且当检测到这种变化时，收集执行模型适应所需的过程输入和输出数据。接下来，适应系统确定多变量过程模型内的SISO模型的子集，其将被修改，例如，基于例如确定哪个过程输入与实际（测量）过程输出和由多变量过程模型开发的过程输出。然后，适配系统执行标准或已知的模型切换和参数插值技术以适配所选择的SISO模型。在对一个或多个SISO模型进行了适应之后，通过确定适应的多变量过程模型是否具有比当前多变量过程模型更低的建模误差来验证所得到的多变量过程模型。如果是这样，在多变量控制器中使用适应的多变量过程模型。

9. 发明授权

US09323234B2 Predicted fault analysis 有权
标题翻译：预测故障分析
公开(公告)号：US09323234B2
公开(公告)日：2016-04-26
申请号：US13279881
申请日：2011-10-24
申请人： Ling Zhou , Paul K. Daly , Robert B. Havekost , Terrence L. Blevins , Wilhelm K. Wojsznis , Mark J. Nixon , Christopher J. Worek , Paul R. Muston
发明人： Ling Zhou , Paul K. Daly , Robert B. Havekost , Terrence L. Blevins , Wilhelm K. Wojsznis , Mark J. Nixon , Christopher J. Worek , Paul R. Muston
IPC分类号： G06F19/00 , G05B13/04 , G05B19/418 , G05B23/02
CPC分类号： G05B13/048 , G05B19/41875 , G05B23/0283 , G05B2219/32187 , G05B2219/32194 , Y02P90/22
摘要： Example methods, apparatuses and systems to correlate candidate factors to a predicted fault in a process control system are disclosed. Techniques may include obtaining a value associated with a particular factor corresponding to a process, and predicting a fault based on the value. A set of candidate factors corresponding to the predicted fault may be determined, and a correlation between the predicted fault and at least one factor from the set may be displayed. Different sections of the display may respectively correspond to the predicted fault and to the at least one factor, and the correlation may be indicated by time aligning the different sections. Modifications to one displayed section may result in automatic modification of other sections to maintain the correlation. A user may select one or more candidate factors to be displayed, and may indicate a particular point of a particular section to obtain additional details.
摘要翻译：公开了将候选因子与过程控制系统中的预测故障相关联的示例性方法，设备和系统。技术可以包括获得与对应于过程的特定因素相关联的值，以及基于该值来预测故障。可以确定对应于预测故障的一组候选因子，并且可以显示预测故障与来自该组的至少一个因子之间的相关性。显示器的不同部分可以分别对应于预测的故障和至少一个因素，并且可以通过对不同部分的时间对准来指示相关性。对一个显示部分的修改可能导致其他部分的自动修改以维持相关性。用户可以选择要显示的一个或多个候选因子，并且可以指示特定部分的特定点以获得附加细节。

10. 发明授权

US09110452B2 Inferential process modeling, quality prediction and fault detection using multi-stage data segregation 有权
标题翻译：推理过程建模，质量预测和使用多阶段数据隔离的故障检测
公开(公告)号：US09110452B2
公开(公告)日：2015-08-18
申请号：US13611733
申请日：2012-09-12
申请人： Terrence L. Blevins , Wilhelm K. Wojsznis , Mark J. Nixon , John M. Caldwell
发明人： Terrence L. Blevins , Wilhelm K. Wojsznis , Mark J. Nixon , John M. Caldwell
IPC分类号： G06F19/00 , G05B17/02 , G05B23/02
CPC分类号： G06F17/18 , G05B17/02 , G05B23/024 , G06F17/16
摘要： A process modeling technique uses a single statistical model developed from historical data for a typical process and uses this model to perform quality prediction or fault detection for various different process states of a process. The modeling technique determines means (and possibly standard deviations) of process parameters for each of a set of product grades, throughputs, etc., compares on-line process parameter measurements to these means and uses these comparisons in a single process model to perform quality prediction or fault detection across the various states of the process. In this manner, a single process model can be used to perform quality prediction or fault detection while the process is operating in any of the defined process stages or states.
摘要翻译：过程建模技术使用从历史数据开发的单个统计模型用于典型过程，并使用该模型对过程的各种不同过程状态执行质量预测或故障检测。建模技术确定了一组产品等级，吞吐量等中的每一个的工艺参数的平均值（可能是标准偏差），将在线工艺参数测量与这些方法进行比较，并在单个过程模型中使用这些比较来执行质量在过程的各种状态下的预测或故障检测。以这种方式，当过程在任何定义的过程阶段或状态下操作时，可以使用单个过程模型来执行质量预测或故障检测。

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