公开(公告)号：US07949495B2

公开(公告)日：2011-05-24

申请号：US11205745

申请日：2005-08-17

申请人： David E. Wiklund ,  Kadir Kavaklioglu ,  John P. Miller ,  Ross C. Lamothe ,  Evren Eryurek

发明人： David E. Wiklund ,  Kadir Kavaklioglu ,  John P. Miller ,  Ross C. Lamothe ,  Evren Eryurek

IPC分类号： G06F11/30 ,  G21C17/00 ,  G01R23/16

CPC分类号： G01F1/363 ,  G01F1/50 ,  G01F25/0007 ,  G05B13/0275 ,  G05B21/02 ,  G05B23/0229 ,  G05D7/0635

摘要： A process variable transmitter with diagnostics based on power spectral density (PSD) analysis of a process variable sensor signal is provided. In one embodiment, the process variable transmitter is a pressure transmitter and the diagnostics are used to diagnose impulse line obstruction or impending obstruction. Other diagnostics are also useful such as diagnosing primary element degradation. The sensor signal is digitized and the digitized signal is transferred into the frequency domain. The power of the frequencies on the sensor signal is examined to provide the enhanced diagnostics. In one aspect diagnostics are generated directly with the sensor PSD data. In another aspect, the PSD analysis is used to tune a filter in order to enhance traditional diagnostic algorithms.

摘要翻译： 提供了一种基于过程变量传感器信号功率谱密度（PSD）分析诊断的过程变量发生器。 在一个实施例中，过程变量发射器是压力变送器，并且诊断用于诊断脉冲线阻塞或即将发生的阻塞。 其他诊断也是有用的，例如诊断主要元素降解。 传感器信号被数字化，数字化信号被传送到频域。 检查传感器信号上的频率的功率以提供增强的诊断。 在一个方面，使用传感器PSD数据直接生成诊断。 另一方面，PSD分析用于调整滤波器以增强传统的诊断算法。

公开(公告)号：US20100165066A1

公开(公告)日：2010-07-01

申请号：US12346252

申请日：2008-12-30

申请人： John P. Miller ,  David J. Eaton ,  Peter T. Collings ,  Lun Chan ,  Easwaran Nambudiri ,  James A. Salomon

发明人： John P. Miller ,  David J. Eaton ,  Peter T. Collings ,  Lun Chan ,  Easwaran Nambudiri ,  James A. Salomon

IPC分类号： B41J2/01 ,  G06K19/06

CPC分类号： G07B17/00508 ,  G07B2017/00556 ,  G07B2017/00637

摘要： Systems and methods for providing evidence of printing in metering systems even in the event of a print head failure are provided. Along with generating a primary image for an indicium that evidences payment, a secondary image for the indicium, identical to a corresponding portion of the primary image but at a lower density, with physical boundaries that are within the boundaries of the primary image, is also generated. The primary image is printed by a first nozzle array, and the secondary image is printed by a second nozzle array. Because the primary image completely overlaps the secondary image, the secondary image is undetectable if the primary image is properly printed. The secondary image provides evidence of printing of the indicium that can be used to obtain a refund for the indicium in the event that the primary image was not printed due to failure of the first nozzle array.

摘要翻译： 提供了即使在打印头故障的情况下也能在计量系统中提供印刷证据的系统和方法。 除了产生证据支付的标记的主图像之外，与主图像的对应部分相同但是具有较低密度的标记的二次图像与主图像的边界内的物理边界也是 生成。 主图像由第一喷嘴阵列打印，次要图像由第二喷嘴阵列打印。 由于主图像完全与次要图像重叠，如果正确打印了主图像，则辅助图像将不可检测。 次要图像提供印刷标记的证据，可以用于在由于第一喷嘴阵列的故障而未打印主图像的情况下获得标记的退款。

公开(公告)号：US20090154766A1

公开(公告)日：2009-06-18

申请号：US11955446

申请日：2007-12-13

申请人： Douglas B. Quine ,  John P. Miller

发明人： Douglas B. Quine ,  John P. Miller

IPC分类号： G06K9/00

CPC分类号： G07B17/00508 ,  G06K9/036 ,  G07B2017/00556 ,  G07B2017/00709

摘要： In a mailing machine, an image element included in a postage meter indicium printed on a mail piece is transported past a linear image capture device. The image capture device is operated to produce a smeared image of the image element. The smeared image is then automatically analyzed to detect failures in the print elements of a postage meter that is part of the mailing machine.

摘要翻译： 在邮寄机中，打印在邮件上的邮资计费标签中包括的图像元素被传送通过线性图像捕获装置。 操作图像捕获装置以产生图像元素的模糊图像。 然后自动分析模糊图像以检测作为邮寄机的一部分的邮资计费器的打印元件中的故障。

公开(公告)号：US20090097537A1

公开(公告)日：2009-04-16

申请号：US11973960

申请日：2007-10-10

申请人： John P. Miller

发明人： John P. Miller

IPC分类号： H04B3/46

CPC分类号： G05B23/024

摘要： Systems and methods are provided for detecting abnormal conditions and preventing abnormal situations from occurring in controlled processes. Statistical signatures of a monitored variable are modeled as a function of the statistical signatures of a load variable. The statistical signatures of the monitored variable may be modeled according to an extensible regression model or a simplified load following algorithm. The systems and methods may be advantageously applied to detect plugged impulse lines in a differential pressure flow measuring device.

摘要翻译： 提供了系统和方法，用于检测异常情况并防止异常情况在受控过程中发生。 监控变量的统计签名被建模为负载变量的统计签名的函数。 监控变量的统计特征可以根据可扩展回归模型或简化的加载跟踪算法进行建模。 可以有利地应用系统和方法来检测差压流量测量装置中的堵塞脉冲线。

公开(公告)号：US20090055457A1

公开(公告)日：2009-02-26

申请号：US11895184

申请日：2007-08-23

申请人： John P. Miller

发明人： John P. Miller

IPC分类号： G06F17/10

CPC分类号： G05B15/02 ,  G05B19/0426 ,  G05B2219/25014 ,  G05B2219/25243

摘要： A digital filter design algorithm is implemented directly within a process control field device or other process related equipment. Filter design parameters are exposed so that filter design parameter values may be provided to the digital filter design algorithm so that the digital filter design algorithm may calculate digital filter coefficients for a digital filter having desired frequency response characteristics. The digital filter design parameter values may be provided by a user, or may be provided as process variable data output from a process control field device or other process related equipment. Once the coefficients of the digital filter having the desired frequency response characteristics have been calculated, the digital filter may be applied to process variable data received by the process control field device or other process related equipment.

摘要翻译： 数字滤波器设计算法直接在过程控制现场设备或其他过程相关设备中实现。 滤波器设计参数被公开，使得可以将滤波器设计参数值提供给数字滤波器设计算法，使得数字滤波器设计算法可以计算具有期望频率响应特性的数字滤波器的数字滤波器系数。 数字滤波器设计参数值可以由用户提供，或者可以被提供为从过程控制现场设备或其他过程相关设备输出的过程变量数据。 一旦已经计算出具有期望的频率响应特性的数字滤波器的系数，则可以将数字滤波器应用于处理由过程控制现场设备或其他处理相关设备接收的可变数据。

公开(公告)号：US07494201B2

公开(公告)日：2009-02-24

申请号：US10974582

申请日：2004-10-27

申请人： John P. Miller

发明人： John P. Miller

IPC分类号： B41J29/38

CPC分类号： B41J2/505 ,  B41J13/12

摘要： A method and apparatus for printing an image on a print medium using an ink jet print head in an apparatus having an encoder system. The method includes generating a first firing pulse for the print head and starting a timer, waiting to receive an encoder signal from the encoder system and determining whether the timer has reached a preset time limit after the encoder signal is received, generating a second firing pulse for the print head if it is determined that the timer has reached the preset time limit after the encoder signal is received, and waiting for the timer to reach the preset time limit and generating a second firing pulse for the print head when the preset time limit is reached if it is determined that the timer has not reached the preset time limit after the encoder signal is received.

摘要翻译： 一种用于在具有编码器系统的装置中使用喷墨打印头在打印介质上打印图像的方法和装置。 该方法包括：产生用于打印头的第一点火脉冲和启动定时器，等待从编码器系统接收编码器信号，并且在接收到编码器信号之后确定定时器是否已达到预设的时限，产生第二点火脉冲 对于打印头，如果在接收到编码器信号之后确定定时器已经达到预设时间限制，并且等待定时器达到预设时间限制，并且当预设时间限制时产生用于打印头的第二点火脉冲 如果在接收到编码器信号之后确定定时器尚未达到预设时限，则到达。

公开(公告)号：US20080168356A1

公开(公告)日：2008-07-10

申请号：US12029166

申请日：2008-02-11

申请人： Evren Eryurek ,  Kadir Kavaklioglu ,  John P. Miller

发明人： Evren Eryurek ,  Kadir Kavaklioglu ,  John P. Miller

IPC分类号： G06F15/177

CPC分类号： G05B23/0272

摘要： A system for visually presenting data receives signal processing data generated signal processing data collection blocks corresponding to devices associated with a process plant. The signal processing data collection blocks may generate data such as statistical data, frequency analysis data, auto regression data, wavelets data, etc. The system displays an image representative of the devices and representative of a context of the devices within the process plant. Additionally, data based on signal processing data corresponding to one or more devices is displayed. For example, the signal processing data for the device could be displayed. As another example, data may be generated based on the signal processing data and this generated data may be displayed.

摘要翻译： 用于视觉呈现数据的系统接收与处理装置相关联的装置相对应的信号处理数据产生的信号处理数据采集块。 信号处理数据采集块可以产生诸如统计数据，频率分析数据，自动回归数据，小波数据等的数据。系统显示表示设备的图像并代表处理工厂内的设备的上下文。 此外，显示基于对应于一个或多个设备的信号处理数据的数据。 例如，可以显示设备的信号处理数据。 作为另一示例，可以基于信号处理数据生成数据，并且可以显示该生成的数据。

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：US20080082297A1

公开(公告)日：2008-04-03

申请号：US11688795

申请日：2007-03-20

申请人： Marcus R. Lundeberg ,  Nikola Samardzija ,  John P. Miller

发明人： Marcus R. Lundeberg ,  Nikola Samardzija ,  John P. Miller

IPC分类号： G21C17/00

CPC分类号： G05B23/0245 ,  G05B23/021 ,  G05B23/024 ,  Y10S715/965

摘要： A system and method of monitoring and diagnosing on-line multivariate process variable data in a process plant, where the multivariate process data comprises a plurality of process variables each having a plurality of observations, includes collecting on-line process data from a process control system within the process plant when the process is on-line, where the collected on-line process data comprises a plurality of observations of a plurality of process variables, performing a multivariate statistical analysis to represent the operation of the process based on a set of collected on-line process data comprising a measure of the operation of the process when the process is on-line, where the representation of the operation of the process is adapted to be executed to generate a result, storing the representation of the operation of the process and the set of collected on-line process data, and generating an output based on a parameter of the representation of the operation of the process, where the parameter of the representation of the operation of the process comprises one or more of a result generated by the representation of the operation of the process, a process variable used to generate the representation of the operation of the process and the set of collected on-line process data.

摘要翻译： 一种在过程工厂中监视和诊断在线多变量过程变量数据的系统和方法，其中多变量过程数据包括多个具有多个观察值的过程变量，包括从过程控制系统收集在线过程数据 在过程在线的过程工厂内，收集的在线过程数据包括多个过程变量的多个观察结果，执行多变量统计分析以基于收集的集合来表示过程的操作 在线过程数据包括当过程在线时的过程的操作的度量，其中过程的操作的表示适于被执行以生成结果，存储过程的操作的表示 以及收集的在线过程数据的集合，并且基于对proc的操作的表示的参数生成输出 其中过程的操作的表示的参数包括由过程的操作的表示生成的结果中的一个或多个，用于生成过程的操作的表示的过程变量和 收集在线过程数据。

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。