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公开(公告)号：EP0660211A3
公开(公告)日：1996-01-10
申请号：EP94420336.3
申请日：1994-12-01
发明人： Hopkins, Robert William, c/o Eastman Kodak Company , Miller, Paige, c/o Eastman Kodak Company , Swanson, Ronald Eddy, c/o Eastman Kodak Company , Scheible, John Joseph, c/o Eastman Kodak Company
CPC分类号： G05B21/02
摘要： In a manufacturing process using multivariate analysis for statistical process control, data representing a plurality of process and/or product variables is collected during operation of the process. A surrogate variable, representing the overall state of the process is evaluated. The surrogate variable is a function of a plurality of intermediate variables, which in turn are a function of the process and/or product variables. When the value of the surrogate variable is outside of a predetermined limit, the contributions to the surrogate variable by the intermediate variables are calculated. The intermediate variable with the largest contribution is identified and the contributions to the identified intermediate variable by the process variables is calculated. The process variables with the largest contribution to the identified intermediate variable are identified, and used to diagnose and correct the problem with the process.
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2.发明公开
公开(公告)号：EP0660211A2
公开(公告)日：1995-06-28
申请号：EP94420336.3
申请日：1994-12-01
发明人： Hopkins, Robert William, c/o Eastman Kodak Company , Miller, Paige, c/o Eastman Kodak Company , Swanson, Ronald Eddy, c/o Eastman Kodak Company , Scheible, John Joseph, c/o Eastman Kodak Company
CPC分类号： G05B21/02
摘要： In a manufacturing process using multivariate analysis for statistical process control, data representing a plurality of process and/or product variables is collected during operation of the process. A surrogate variable, representing the overall state of the process is evaluated. The surrogate variable is a function of a plurality of intermediate variables, which in turn are a function of the process and/or product variables. When the value of the surrogate variable is outside of a predetermined limit, the contributions to the surrogate variable by the intermediate variables are calculated. The intermediate variable with the largest contribution is identified and the contributions to the identified intermediate variable by the process variables is calculated. The process variables with the largest contribution to the identified intermediate variable are identified, and used to diagnose and correct the problem with the process.
摘要翻译： 在使用用于统计过程控制的多变量分析的制造过程中，在过程的操作期间收集表示多个过程和/或产品变量的数据。 评估代表过程总体状态的替代变量。 替代变量是多个中间变量的函数，其又是过程和/或乘积变量的函数。 当替代变量的值超出预定限度时，计算中间变量对替代变量的贡献。 确定贡献最大的中间变量，并计算过程变量对识别的中间变量的贡献。 识别对识别的中间变量贡献最大的过程变量，用于诊断和纠正过程中的问题。
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