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Predictive Failure Analysis

A technology for failure and quality prediction, used in prediction, testing/monitoring control systems, program control, etc., to solve problems such as unremediable products

Active Publication Date: 2018-04-13
FISHER-ROSEMOUNT SYST INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these improvements may not remedy currently completed, out-of-spec

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Embodiment Construction

[0029] While the exemplary methods and apparatus described below include, among other components, software and / or firmware executed on hardware, it should be noted that these embodiments are illustrative only and should not be considered limiting. For example, it is contemplated that any or all of these hardware, software, and firmware components may be implemented entirely in hardware, entirely in software, or in any combination of software and hardware. Thus, while exemplary methods and apparatus are described below, those of ordinary skill in the art will readily appreciate that the provided embodiments are not the only ways to implement such methods and apparatus.

[0030] Currently, process control systems provide analytical and / or statistical analysis of process control information. However, these systems use offline tools to determine the cause and possible corrective actions of process control failures that could affect the quality of the final product. These offline ...

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Abstract

Example methods, apparatus, and systems for associating candidate factors with predicted failures in process control systems are disclosed. The technique consists of obtaining values ​​associated with specific factors corresponding to the process and predicting failures based on this value. A set of candidate factors corresponding to the predicted failure is determined, and a correlation between the predicted failure and at least one factor from the set is displayed. Different portions of the display correspond respectively to the predicted failure and the at least one factor, and the correlation can be indicated by aligning the different portions in time. Modifications to one shown section can cause automatic modifications to other sections to maintain the correlation. The user can choose to display one or more candidate factors and indicate specific points on specific sections for more detail.

Description

[0001] related application [0002] This application is a continuation-in-part of unpatented U.S. Patent Application Serial No. 12 / 538,995, filed August 11, 2009, entitled "Method and Apparatus for Predicting Process Quality in a Process Control System," which is expressly incorporated by The contents of this application are incorporated herein by reference. technical field [0003] The present invention relates generally to process control systems and, more particularly, to methods and apparatus for predicting process quality in process control systems. Background technique [0004] Process control systems, such as those used in chemical, petroleum or other processes, typically include one or more process controllers and communicatively coupled to at least one host computer or operator via an analog, digital or combined analog / digital bus An input / output (I / O) device for a worker station and one or more field devices. Field devices, which can be, for example, valves, val...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B13/04
CPCG05B17/02G06Q10/04G06Q50/04G05B23/0235Y02P90/30G05B15/02G05B23/024G05B2219/32201G05B2219/32194G05B2219/32187
Inventor 周玲P·K·达利R·B·哈韦科斯特T·L·布莱文斯W·K·沃杰茨尼斯M·J·尼克松C·J·沃雷克P·R·慕斯顿
Owner FISHER-ROSEMOUNT SYST INC
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