Diagnostics for resistive elements of process devices
    11.
    发明授权
    Diagnostics for resistive elements of process devices 有权
    过程设备电阻元件诊断

    公开(公告)号:US06754601B1

    公开(公告)日:2004-06-22

    申请号:US09409098

    申请日:1999-09-30

    IPC分类号: G01C1900

    CPC分类号: G01K15/00 G07C3/00 G08C19/02

    摘要: Diagnostic circuitry of a process device is used to detect degradation of a resistive element of the process device while the process device remains online, without the use of an additional power source. In addition, once degradation of the resistive element is detected, the diagnostic circuitry can be compensated for automatically. The diagnostic circuitry includes a testing circuit and a processing system. The testing circuit is coupled to the resistive element and is configured to apply a test signal to the resistive element. The test signal heats the resistive element and causes the resistive element to generate a response signal. The processing system compares a change in the response signal to a corresponding reference to detect degradation of the resistive element.

    摘要翻译: 过程设备的诊断电路用于在处理设备保持联机的情况下检测过程设备的电阻元件的劣化,而不需要额外的电源。 此外,一旦检测到电阻元件的劣化,就可以自动补偿诊断电路。 诊断电路包括测试电路和处理系统。 测试电路耦合到电阻元件,并被配置为将测试信号施加到电阻元件。 测试信号加热电阻元件并使电阻元件产生响应信号。 处理系统将响应信号的变化与相应的参考值进行比较,以检测电阻元件的劣化。

    Prediction of error magnitude in a pressure transmitter
    12.
    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
    13.
    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。

    Temperature transmitter with on-line calibration using johnson noise
    14.
    发明授权
    Temperature transmitter with on-line calibration using johnson noise 失效
    温度变送器,使用约翰逊噪声进行在线校准

    公开(公告)号:US5746511A

    公开(公告)日:1998-05-05

    申请号:US582514

    申请日:1996-01-03

    IPC分类号: G01K7/30 G01K15/00

    CPC分类号: G01K15/00 G01K7/30

    摘要: A temperature transmitter and a process control system includes a sensor input for coupling to a temperature sensor having a temperature dependent resistance. The resistance measuring circuitry couples to the sensor input and provides a resistance output related to resistance of the temperature dependent resistance. Analog to digital conversion circuitry couples to the sensor input and provides a digital output related to AC signals across the sensor input. Digital signal processing circuitry isolates a Johnson noise component of the AC signals and provides a digitized Johnson noise output. Temperature measurement circuitry provides a calibrated temperature output based upon the resistance output and the digitized Johnson noise output. Output circuitry transmits the calibrated temperature output over the process control loop.

    摘要翻译: 温度变送器和过程控制系统包括用于耦合到具有温度依赖性电阻的温度传感器的传感器输入。 电阻测量电路耦合到传感器输入,并提供与温度依赖电阻的电阻相关的电阻输出。 模数转换电路耦合到传感器输入,并提供与传感器输入端的交流信号相关的数字输出。 数字信号处理电路隔离交流信号的约翰逊噪声分量,并提供数字化约翰逊噪声输出。 温度测量电路提供基于电阻输出和数字化约翰逊噪声输出的校准温度输出。 输出电路通过过程控制回路传输校准温度输出。

    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。

    System and method for optimizing parameters of multiple rail vehicles operating over multiple intersecting railroad networks
    16.
    发明授权
    System and method for optimizing parameters of multiple rail vehicles operating over multiple intersecting railroad networks 有权
    用于优化在多个相交铁路网上运行的多轨道车辆参数的系统和方法

    公开(公告)号:US08630757B2

    公开(公告)日:2014-01-14

    申请号:US11831492

    申请日:2007-07-31

    摘要: In a railway network a method for linking at least one of train parameters, fuel efficiency emission efficiency, and load with network knowledge so that adjustments for network efficiency may be made as time progresses while a train is performing a mission. The method includes dividing the train mission into multiple sections with common intersection points, and calculating train operating parameters based on other trains in a railway network to determine optimized parameters over a certain section. The method further includes comparing optimized parameters to current operating parameters, and altering current operating parameters of the train to coincide with optimized parameters for at least one of the current track section and a pending track section.

    摘要翻译: 在铁路网络中,用于将列车参数,燃料效率排放效率和负载中的至少一个与网络知识相关联的方法,使得当列车执行任务时随着时间的推移可以进行网络效率的调整。 该方法包括将列车任务划分为具有公共交叉点的多个部分,并根据铁路网络中的其他列车计算列车运行参数,以确定特定部分的优化参数。 该方法还包括将优化的参数与当前操作参数进行比较,以及改变列车的当前操作参数以与当前轨道部分和未决轨道部分中的至少一个的优化参数一致。

    Integrated device alerts in a process control system
    17.
    发明授权
    Integrated device alerts in a process control system 有权
    过程控制系统中的集成设备警报

    公开(公告)号:US08044793B2

    公开(公告)日:2011-10-25

    申请号:US10104586

    申请日:2002-03-22

    IPC分类号: G08B23/00

    CPC分类号: G05B23/027

    摘要: An events management system coordinates the exchange of device alert or alarm information between an asset management system and one or more business systems within a process control system or plant. The events management system receives device alerts from the asset management system and uses a rules-engine and one or more state machines to send notifications containing device alert information to one of more of the business systems.

    摘要翻译: 事件管理系统协调资产管理系统与过程控制系统或工厂内的一个或多个业务系统之间的设备警报或报警信息的交换。 事件管理系统从资产管理系统接收设备警报,并使用规则引擎和一个或多个状态机将包含设备警报信息的通知发送到多个业务系统中的一个。

    Open network-based data acquisition, aggregation and optimization for use with process control systems
    18.
    发明授权
    Open network-based data acquisition, aggregation and optimization for use with process control systems 有权
    开放的基于网络的数据采集,聚合和优化用于过程控制系统

    公开(公告)号:US07953842B2

    公开(公告)日:2011-05-31

    申请号:US10368816

    申请日:2003-02-19

    IPC分类号: G06F15/16

    摘要: A system and method of collecting one of process control data and asset data from a plurality of data sources communicatively coupled to an open network stores location information associated with the plurality of data sources and periodically sends requests for process control information to each of the plurality of data sources by using the location information to communicate with each of the plurality of data sources via the open network. In addition, the system and method collects the process control data from messages received in response to the requests for process control information, aggregates the process control data to form aggregated process control data, and stores the aggregated process control data within a database. Additionally, the aggregated data is used in making decisions with regards to operation and maintenance of a process control system or a plant.

    摘要翻译: 从通信耦合到开放网络的多个数据源收集过程控制数据和资产数据之一的系统和方法存储与多个数据源相关联的位置信息,并周期性地向多个数据源中的每一个发送对过程控制信息的请求 数据源通过使用位置信息通过开放网络与多个数据源中的每一个进行通信。 此外,系统和方法响应于对过程控制信息的请求而收到的消息收集过程控制数据,聚合过程控制数据以形成聚合过程控制数据,并将聚合的过程控制数据存储在数据库中。 另外,聚合数据用于对过程控制系统或工厂的操作和维护作出决定。

    Diagnostics in industrial process control system
    19.
    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。