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Methods for improved forewarning of critical events across multiple data channels

机译:跨多个数据通道改进重大事件预警的方法

摘要

This disclosed invention concerns improvements in forewarning of critical events via phase-space dissimilarity analysis of data from mechanical devices, electrical devices, biomedical data, and other physical processes. First, a single channel of process-indicative data is selected that can be used in place of multiple data channels without sacrificing consistent forewarning of critical events. Second, the method discards data of inadequate quality via statistical analysis of the raw data, because the analysis of poor quality data always yields inferior results. Third, two separate filtering operations are used in sequence to remove both high-frequency and low-frequency artifacts using a zero-phase quadratic filter. Fourth, the method constructs phase-space dissimilarity measures (PSDM) by combining of multi-channel time-serial data into a multi-channel time-delay phase-space reconstruction. Fifth, the method uses a composite measure of dissimilarity (Ci) to provide a forewarning of failure and an indicator of failure onset.
机译:本公开的发明涉及通过对来自机械设备,电气设备,生物医学数据和其他物理过程的数据进行相空间相异性分析来对关键事件的预警进行改进。首先,选择一个过程指示数据通道,该通道可以代替多个数据通道使用,而不会牺牲关键事件的一致预警。其次,该方法通过对原始数据进行统计分析来丢弃质量欠佳的数据,因为对质量较差的数据的分析始终会得出较差的结果。第三,依次使用两个单独的滤波操作,以使用零相位二次滤波器消除高频和低频伪像。第四,该方法通过将多通道时间序列数据组合成多通道时延相空间重构来构造相空间相异性度量(PSDM)。第五,该方法使用了相似度的复合度量(C i )来提供故障预警和故障发生的指标。

著录项

  • 公开/公告号US2004059761A1

    专利类型

  • 公开/公告日2004-03-25

    原文格式PDF

  • 申请/专利权人 HIVELY LEE M.;

    申请/专利号US20030667045

  • 发明设计人 LEE M. HIVELY;

    申请日2003-09-22

  • 分类号G06F3/00;

  • 国家 US

  • 入库时间 2022-08-21 23:16:17

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