Prediction of error magnitude in a pressure transmitter
    11.
    发明授权
    Prediction of error magnitude in a pressure transmitter 有权
    压力变送器误差大小的预测

    公开(公告)号:US06701274B1

    公开(公告)日:2004-03-02

    申请号:US09384876

    申请日:1999-08-27

    IPC分类号: G01L1100

    摘要: A pressure transmitter with an output predicting the magnitude of error in the pressure transmitter's output. A pressure sensor is adapted to sense a process pressure. A controller coupled to the pressure sensor generates a transmitter output representing the process pressure. A memory stores predetermined data predicting magnitudes of transmitter output error as a function of cumulative excessive sensor output levels, and also stores a record of cumulative excessive sensor output levels. The controller calculates a predicted present magnitude of transmitter output error as a function of the accumulated record and the predetermined data, and generates the prediction output.

    摘要翻译: 压力变送器,输出预测压力变送器输出的误差大小。 压力传感器适于感测过程压力。 耦合到压力传感器的控制器产生表示过程压力的变送器输出。 存储器存储预测发射机输出误差的大小作为累积过量传感器输出电平的函数的预定数据,并且还存储累积过量传感器输出电平的记录。 控制器根据累积记录和预定数据计算发射机输出误差的预测当前幅度,并产生预测输出。

    Flow measurement with diagnostics
    12.
    发明授权
    Flow measurement with diagnostics 有权
    流量测量与诊断

    公开(公告)号:US06654697B1

    公开(公告)日:2003-11-25

    申请号:US09383828

    申请日:1999-08-27

    IPC分类号: G06F1900

    摘要: A fluid flow meter diagnosing the condition of its primary element or impulse lines connecting to a differential pressure sensor. A difference circuit coupled to the differential pressure sensor has a difference output representing the sensed differential pressure minus a moving average. A calculate circuit receives the difference output and calculates a trained output of historical data obtained during an initial training time. The calculate circuit also calculates a monitor output of current data obtained during monitoring or normal operation of the fluid flow meter. A diagnostic circuit receives the trained output and the monitor put and generates a diagnostic output indicating a current condition of the primary element and impulse lines.

    摘要翻译: 一种流体流量计,用于诊断连接到差压传感器的主要元件或脉冲线的状态。 耦合到差压传感器的差分电路具有表示所感测差压减去移动平均值的差输出。 计算电路接收差分输出并计算在初始训练时间期间获得的历史数据的训练输出。 计算电路还计算在流体流量计的监视或正常操作期间获得的当前数据的监视输出。 诊断电路接收经过训练的输出和监视器放置并产生指示主元件和脉冲线的当前状况的诊断输出。

    Pressure transmitter with diagnostics
    13.
    发明授权
    Pressure transmitter with diagnostics 有权
    压力变送器带诊断

    公开(公告)号:US07254518B2

    公开(公告)日:2007-08-07

    申请号:US10801073

    申请日:2004-03-15

    IPC分类号: G06F11/30

    摘要: In one embodiment, a pressure transmitter is provided which diagnoses the condition of a primary element and/or an impulse line which connects to a pressure sensor. A difference circuit coupled to the pressure sensor has a difference output which represents the sensed pressure minus a moving average. A calculate circuit receives the difference output and calculates a trained output of historical data obtained during an initial training time. The calculate circuit also calculates a monitor output of current data obtained during monitoring or normal operation of the transmitter. A diagnostic circuit receives the trained output and the monitor output and generates a diagnostic output indicating a current condition.

    摘要翻译: 在一个实施例中,提供压力变送器,其诊断连接到压力传感器的主要元件和/或脉冲管线的状态。 耦合到压力传感器的差分电路具有表示感测压力减去移动平均值的差输出。 计算电路接收差分输出并计算在初始训练时间期间获得的历史数据的训练输出。 计算电路还计算在发射机的监视或正常操作期间获得的当前数据的监视输出。 诊断电路接收经过训练的输出和监视器输出,并产生指示当前状况的诊断输出。

    Integrated navigational tree importation and generation in a process plant
    15.
    发明授权
    Integrated navigational tree importation and generation in a process plant 有权
    在过程工厂中综合导航树进口和生成

    公开(公告)号:US08935298B2

    公开(公告)日:2015-01-13

    申请号:US10331974

    申请日:2002-12-30

    IPC分类号: G06F17/30 G05B23/02

    摘要: A process plant data collection and organization system uses a common or integrated navigational tree structure to organize and enable a user to view and access information obtained from different applications or data sources within a process plant, even when those different applications have different manners of organizing or enabling users thereof to view the collected information. The integrated navigational tree may be developed from and may use the navigational tree categories of the different applications or may map the data within different categories of the navigational trees of the different applications into categories within the integrated navigational tree. The integrated navigational tree enables a user to view and access plant data collected or developed by different applications within the process plant in a single place and in an organized manner so that the user can view data related to the plant from a higher point of view than provided by any of the individual applications.

    摘要翻译: 过程工厂数据收集和组织系统使用通用或集成的导航树结构来组织和使用户能够查看和访问从过程工厂内的不同应用或数据源获得的信息,即使这些不同的应用程序具有不同的组织方式或 使其用户可以查看收集的信息。 综合导航树可以从不同应用程序开发并可以使用导航树类别,或者可以将不同应用的不同类别的导航树中的数据映射到集成导航树中的类别中。 综合导航树使用户能够在单个位置和有组织的方式查看和访问过程工厂内的不同应用程序收集或开发的工厂数据,从而使用户可以从较高的观点来查看与工厂相关的数据,而不是 由任何个别应用程序提供。

    Diagnostics in industrial process control system
    16.
    发明授权
    Diagnostics in industrial process control system 有权
    工业过程控制系统诊断

    公开(公告)号:US07680549B2

    公开(公告)日:2010-03-16

    申请号:US11397319

    申请日:2006-04-04

    IPC分类号: G05B11/01

    摘要: A device for diagnosing operation of an industrial process control or monitoring system includes an input configured to receive an input related to a process signal. A first statistical parameter module provides a first statistical parameter output related to a statistical parameter of the process signal. A filter provides a filter output related to a filtered value of the process signal. A second statistical parameter module provides a second statistical parameter output related to a statistical parameter of the filter output. A diagnostic module diagnoses operation of the industrial process based upon the first and second statistical parameters.

    摘要翻译: 用于诊断工业过程控制或监视系统的操作的设备包括被配置为接收与过程信号相关的输入的输入。 第一统计参数模块提供与过程信号的统计参数相关的第一统计参数输出。 过滤器提供与过程信号的过滤值相关的过滤器输出。 第二统计参数模块提供与过滤器输出的统计参数相关的第二统计参数输出。 诊断模块基于第一和第二统计参数诊断工业过程的操作。

    Abnormal situation prevention in a process plant
    18.
    发明申请
    Abnormal situation prevention in a process plant 有权
    过程工厂异常情况预防

    公开(公告)号:US20050197803A1

    公开(公告)日:2005-09-08

    申请号:US10971361

    申请日:2004-10-22

    IPC分类号: G05B23/02 G06F11/30

    CPC分类号: G05B23/0289

    摘要: A system detects abnormal conditions associated with a process plant. The system receives signal processing data generated by signal processing data collection blocks implemented by a plurality of devices. The signal processing data collection blocks may generate data such as statistical data, frequency analysis data, auto regression data, wavelets data, etc. The system includes an analysis engine configured to detect at least one abnormal condition associated with the process plant. The signal processing data is provided to the analysis engine, and the analysis engine determines if an action should be taken.

    摘要翻译: 系统检测与过程工厂相关的异常情况。 系统接收由多个设备实现的信号处理数据采集块生成的信号处理数据。 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。该系统包括被配置为检测与处理工厂相关联的至少一个异常状况的分析引擎。 信号处理数据被提供给分析引擎,并且分析引擎确定是否应该采取动作。

    Flow diagnostic system
    19.
    发明授权
    Flow diagnostic system 有权
    流量诊断系统

    公开(公告)号:US06907383B2

    公开(公告)日:2005-06-14

    申请号:US09852102

    申请日:2001-05-09

    摘要: A flow diagnostic system for a flow sensing element and impulse lines. A pressure transmitter coupled to the impulse lines provides digital pressure data to a control system. The control system provides the pressure data and real time clock readings to a diagnostic application. The diagnostic application calculates a difference between current pressure data and its moving average. A condition of the primary element or impulse lines is diagnosed from a current pressure data set relative to an historical data set. The diagnostic application is downloadable from an application service provider (ASP). The application can run on the control system, a remote computer or the ASP. A diagnostic report is preferably provided.

    摘要翻译: 用于流量检测元件和脉冲管线的流量诊断系统。 耦合到脉冲线的压力传感器向控制系统提供数字压力数据。 控制系统向诊断应用提供压力数据和实时时钟读数。 诊断应用程序计算当前压力数据与其移动平均值之间的差异。 从相对于历史数据集的当前压力数据集中诊断主元件或脉冲线的条件。 诊断应用程序可从应用程序服务提供商(ASP)下载。 应用程序可以在控制系统,远程计算机或ASP上运行。 优选提供诊断报告。

    Control system using process model
    20.
    发明授权
    Control system using process model 有权
    控制系统采用流程模型

    公开(公告)号:US06772036B2

    公开(公告)日:2004-08-03

    申请号:US09943333

    申请日:2001-08-30

    IPC分类号: G06F1900

    摘要: A control system is provided for controlling a process for making paper or paper pulp. The process has a process product output at an end of the process. The controls include a process variable sensor input configured to receive a process variable related to the process. The controller is configured to provide a control signal to control the process. A process model has a model product output which is a model representation of the process product output. The model process output is a function of the sensed process variable and a product output setpoint representative of a desired process product output. The control signal is a function of the product output setpoint and the modeled product output.

    摘要翻译: 提供了一种用于控制制造纸或纸浆的方法的控制系统。 该过程在过程结束时具有过程产品输出。 控制器包括被配置为接收与该过程相关的过程变量的过程变量传感器输入。 控制器被配置为提供控制信号以控制该过程。 过程模型具有模型产品输出,其是过程产品输出的模型表示。 模型过程输出是感测的过程变量和表示所需过程产品输出的产品输出设定值的函数。 控制信号是产品输出设定值和建模产品输出的函数。