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11. 发明授权

US07444191B2 Process model identification in a process control system 有权
标题翻译：过程控制系统中的过程模型识别
公开(公告)号：US07444191B2
公开(公告)日：2008-10-28
申请号：US11243862
申请日：2005-10-04
申请人： John Caldwell , Terrence L. Blevins , Peter Wojsznis , Wilhelm K. Wojsznis
发明人： John Caldwell , Terrence L. Blevins , Peter Wojsznis , Wilhelm K. Wojsznis
IPC分类号： G05B13/02
CPC分类号： G05B13/04 , G05B13/048 , G05B23/0254 , G05B23/0272
摘要： Disclosed is a method of controlling and managing a process control system having a plurality of control loops. The method includes implementing a plurality of control routines to control operation of the plurality of control loops, respectively. The plurality of control routines may include at least one non-adaptive control routine. Operating condition data is then collected in connection with the operation of each control loop of the plurality of control loops, and a respective process model is identified for each control loop of the plurality of control loops from the respective operating condition data collected for each control loop of the plurality of control loops. In some embodiments, the identification of the respective process models may be automatic as a result of a detected process change or be on-demand as a result of an injected parameter change.
摘要翻译：公开了一种控制和管理具有多个控制回路的过程控制系统的方法。该方法包括实现多个控制例程以分别控制多个控制回路的操作。多个控制程序可以包括至少一个非自适应控制程序。然后结合多个控制回路的每个控制回路的操作来收集操作条件数据，并且从针对每个控制回路收集的相应操作条件数据中识别多个控制回路中的每个控制回路的相应过程模型的多个控制回路。在一些实施例中，作为检测到的过程改变的结果，可以自动地识别各个过程模型，或者作为注入的参数改变的结果而被按需。

12. 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。

13. 发明授权

US07257523B1 Integrated distributed process control system functionality on a single computer 有权
标题翻译：在单台计算机上集成分布式过程控制系统功能
公开(公告)号：US07257523B1
公开(公告)日：2007-08-14
申请号：US09510053
申请日：2000-02-22
申请人： Mark Nixon , Terrence L. Blevins , Wilhelm K. Wojsznis
发明人： Mark Nixon , Terrence L. Blevins , Wilhelm K. Wojsznis
IPC分类号： G06F17/50
CPC分类号： G05B17/02
摘要： An apparatus is adapted to be used to create software and programming instructions for a distributed process control system having a user workstation remotely located from a distributed controller that controls one or more field devices using control modules. The apparatus includes a computer having a memory and a processing unit as well as a configuration application and a controller application stored on the computer memory to be executed on the processor. The configuration application is further capable of being executed on the user workstation of the distributed process control system to create the control modules for execution by the distributed controller while the controller application is adapted to be executed on the distributed controller to implement one of the control modules during operation of the distributed process control system. In this system, the configuration application, when run on the computer, creates a first control module capable of being used by the distributed controller within the distributed process control system and the controller application causes execution of the first control module within the computer to thereby simulate operation of the distributed process control system. The use of this system enables the simulation and testing of distributed process control system software and control modules without the use of the hardware, e.g., the distributed process controller and field devices, which will ultimately run that software.
摘要翻译：一种装置适于用于为分布式过程控制系统创建软件和编程指令，所述分布式过程控制系统具有远离位于使用控制模块控制一个或多个现场设备的分布式控制器的用户工作站。该装置包括具有存储器和处理单元以及存储在计算机存储器上以在处理器上执行的配置应用程序和控制器应用的计算机。配置应用还能够在分布式过程控制系统的用户工作站上执行以创建用于由分布式控制器执行的控制模块，同时控制器应用适于在分布式控制器上执行以实现控制模块之一在分布式过程控制系统的运行期间。在该系统中，配置应用程序在计算机上运行时，创建能够由分布式过程控制系统内的分布式控制器使用的第一控制模块，并且控制器应用程序导致在计算机内执行第一控制模块，从而模拟分布式过程控制系统的运行。使用该系统能够在不使用硬件的情况下对分布式过程控制系统软件和控制模块进行仿真和测试，例如最终将运行该软件的分布式过程控制器和现场设备。

14. 发明授权

US09158295B2 Multi-stage process modeling method 有权
标题翻译：多阶段过程建模方法
公开(公告)号：US09158295B2
公开(公告)日：2015-10-13
申请号：US13113044
申请日：2011-05-21
申请人： Terrence L. Blevins , Wilhelm K. Wojsznis , Christopher J. Worek , Mark Nixon
发明人： Terrence L. Blevins , Wilhelm K. Wojsznis , Christopher J. Worek , Mark Nixon
IPC分类号： G06G7/48 , G05B17/02
CPC分类号： G05B17/02 , G05B2219/31265 , G05B2219/32077
摘要： A process is modeled by resolving the process into a plurality of process stages, including at least a first process stage and a second process stage, and developing a plurality of models, each model corresponding to a respective one of the plurality of process stages, wherein the model corresponding to each process stage is developed using data from one or more runs of that process stage and output quality data relating to the one or more runs of that process stage and wherein the model corresponding to each process stage is adapted to produce an output quality prediction associated with that process stage, and wherein the output quality prediction produced by the model of a first one of the process stages is used to develop the model of a second one of the process stages.
摘要翻译：通过将过程解析成多个处理阶段（包括至少第一处理阶段和第二处理阶段）以及开发多个模型来建模过程，每个模型对应于多个处理阶段中的相应一个，其中使用来自该过程级的一个或多个运行的数据和与该过程阶段的一个或多个运行相关的输出质量数据来开发与每个过程阶段相对应的模型，并且其中与每个过程阶段对应的模型适于产生输出与该处理阶段相关联的质量预测，并且其中由第一个进程阶段的模型产生的输出质量预测用于开发第二个进程阶段的模型。

15. 发明申请

US20110288837A1 Multi-Stage Process Modeling Method 有权
标题翻译：多阶段过程建模方法
公开(公告)号：US20110288837A1
公开(公告)日：2011-11-24
申请号：US13113044
申请日：2011-05-21
申请人： Terrence L. Blevins , Wilhelm K. Wojsznis , Christopher J. Worek , Mark Nixon
发明人： Terrence L. Blevins , Wilhelm K. Wojsznis , Christopher J. Worek , Mark Nixon
IPC分类号： G06G7/48
CPC分类号： G05B17/02 , G05B2219/31265 , G05B2219/32077
摘要： A process is modeled by resolving the process into a plurality of process stages, including at least a first process stage and a second process stage, and developing a plurality of models, each model corresponding to a respective one of the plurality of process stages, wherein the model corresponding to each process stage is developed using data from one or more runs of that process stage and output quality data relating to the one or more runs of that process stage and wherein the model corresponding to each process stage is adapted to produce an output quality prediction associated with that process stage, and wherein the output quality prediction produced by the model of a first one of the process stages is used to develop the model of a second one of the process stages.
摘要翻译：通过将过程解析成多个处理阶段（包括至少第一处理阶段和第二处理阶段）以及开发多个模型来建模过程，每个模型对应于多个处理阶段中的相应一个，其中使用来自该过程阶段的一个或多个运行的数据和与该过程阶段的一个或多个运行相关的输出质量数据来开发与每个过程阶段相对应的模型，并且其中与每个过程阶段对应的模型适于产生输出与该处理阶段相关联的质量预测，并且其中由第一个进程阶段的模型产生的输出质量预测用于开发第二个进程阶段的模型。

16. 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。

17. 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.

18. 发明授权

US09182752B2 Method and system for multi-zone modeling to determine material properties in storage tanks 有权
标题翻译：用于多区域建模的方法和系统，用于确定储罐中的材料性质
公开(公告)号：US09182752B2
公开(公告)日：2015-11-10
申请号：US13103432
申请日：2011-05-09
申请人： Terrence L. Blevins , Wilhelm K. Wojsznis , Christopher J. Worek
发明人： Terrence L. Blevins , Wilhelm K. Wojsznis , Christopher J. Worek
IPC分类号： G05B17/02 , G05B13/04
CPC分类号： G05B17/02 , G05B13/048
摘要： In a batch process control system employing storage tanks without mixers, properties of the storage tank pump out feedstock may be modeled to more accurately control the quality of a process. This model may not require the measurement of input or pump out flow or assume perfect blending. Rather, the developed model may assume that feedstock input into a storage tank may remain layered with some mixing due to continuous convection, turbulence during loading, or other factors. The model may include a projection of the properties describing a storage tank layer of input material into the model. For each new load of storage tank input feedstock, model zones may be shifted and the zone from which the feedstock is drawn may be updated with the properties from the new load.
摘要翻译：在采用没有混合器的储罐的批量过程控制系统中，可以建模储罐泵出原料的特性以更准确地控制过程的质量。该型号可能不需要测量输入或泵出流量或假设完美混合。相反，开发的模型可以认为，由于连续对流，加载期间的湍流或其他因素，输入到储罐中的原料可能会保持分层。该模型可以包括将描述输入材料的储罐层的性质的投影放入模型中。对于储存罐输入原料的每个新载荷，模型区域可能会移动，并且可以从新载荷的属性更新绘制原料的区域。

19. 发明授权

US06557118B2 Diagnostics in a process control system 有权
公开(公告)号：US06557118B2
公开(公告)日：2003-04-29
申请号：US09801850
申请日：2001-03-08
申请人： Trevor D. Schleiss , Wilhelm K. Wojsznis , Terrence L. Blevins
发明人： Trevor D. Schleiss , Wilhelm K. Wojsznis , Terrence L. Blevins
IPC分类号： G06F1100
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 associated with each of the different devices, loops or function blocks 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.

20. 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。

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