Abnormal event detection using principal component analysis
    1.
    发明授权
    Abnormal event detection using principal component analysis 失效
    使用主成分分析的异常事件检测

    公开(公告)号:US08121817B2

    公开(公告)日:2012-02-21

    申请号:US12311785

    申请日:2007-10-16

    IPC分类号: G05B13/04

    摘要: Process control system for detecting abnormal events in a process having one or more independent variables and one or more dependent variables. The system includes a device for measuring values of the one or more independent and dependent variables, a process controller having a predictive model for calculating predicted values of the one or more dependent variables from the measured values of the one or more independent variables, a calculator for calculating residual values for the one or more dependent variables from the difference between the predicted and measured values of the one or more dependent variables, and an analyzer for performing a principal component analysis on the residual values. The process controller is a multivariable predictive control means and the principal component analysis results in the output of one or more scores values, T2 values and Q values.

    摘要翻译: 用于检测具有一个或多个独立变量和一个或多个因变量的过程中的异常事件的过程控制系统。 该系统包括用于测量一个或多个独立和从属变量的值的装置,具有用于根据一个或多个独立变量的测量值计算一个或多个从属变量的预测值的预测模型的过程控制器,计算器 用于根据一个或多个因变量的预测值和测量值之间的差异计算一个或多个因变量的残差值,以及用于对残差值进行主成分分析的分析器。 过程控制器是一个多变量预测控制手段,主成分分析得出一个或多个分数值,T2值和Q值的输出。

    Abnormal event detection using principal component analysis
    2.
    发明申请
    Abnormal event detection using principal component analysis 失效
    使用主成分分析异常事件检测

    公开(公告)号:US20100036529A1

    公开(公告)日:2010-02-11

    申请号:US12311785

    申请日:2007-10-16

    IPC分类号: G05B13/04 G05B21/00

    摘要: A process control system and a method for detecting abnormal events in a process, the process comprising one or more independent and one or more dependent variables a means for measuring values of the dependent and independent variables, and a multivariable predictive control means capable of calculating predicted values of the one or more dependent variables from the measured values of the one or more independent variables using a predictive model, which method comprises performing principal components analysis on the residual values of the one or more dependent variables, the residual values being calculated from the difference between the predicted and measured dependent variable values.

    摘要翻译: 一种用于检测过程中的异常事件的过程控制系统和方法,所述过程包括一个或多个独立和一个或多个因变量,用于测量从属和独立变量的值的装置,以及能够计算预测的多变量预测控制装置 使用预测模型的一个或多个独立变量的测量值的一个或多个从属变量的值,该方法包括对所述一个或多个从属变量的残差执行主成分分析,所述残差值从 预测和测量的因变量值之间的差异。