A case study in on-line intelligent sensing.

被引:0
作者
Moran, AW [1 ]
O'Reilly, P [1 ]
Irwin, GW [1 ]
机构
[1] Queens Univ Belfast, Sch Elect & Elect Engn, Intelligent Syst & Control Grp, Belfast BT9 5AH, Antrim, North Ireland
来源
PROCEEDINGS OF THE 2000 AMERICAN CONTROL CONFERENCE, VOLS 1-6 | 2000年
关键词
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暂无
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
A new method is described for on-line detection of parameter changes in a sensor. This is based on work by Yung and Clarke which employs a local ARIMA model of the sensor output to generate an innovation sequence. A statistical test, which quantifies the change to the variance of an innovation sequence, is developed and used to provide a decision process based on a Likelihood Ratio of probabilities. Real-time experimental results for detecting a change in a thermocouple time-constant are presented.
引用
收藏
页码:3949 / 3953
页数:5
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