Process monitoring and control using self-validating sensors

Manus Henry; David James Sandoz; David W. Clarke

Process monitoring and control using self-validating sensors

Manus Henry (Inventor)
, David James Sandoz (Inventor)
, David W. Clarke (Inventor)

University of Oxford

Research output: Patent

Abstract

A multi-level (hierarchical) process monitoring system comprises a process monitoring unit (14), at a higher level of the system, and a plurality of sensors (SEVA 1, SEVA 2 ... SEVA 36) at a lower level of the system, at least one of the sensors having SEVA capability (self-validating capability), the sensors being adapted to provide respective measurement values of respective process variables to said monitoring unit, said monitoring unit being so arranged as to monitor the outputs of the sensors and to identify any significant apparent change in the process conditions as detected from an overview of said sensor outputs, and on detection of an apparent significant change, to request additional status information from at least one of the SEVA sensor/s to determine whether the apparent change is in reality due to a change in the characteristics of a particular SEVA sensor rather than an actual significant change in the process conditions.

Original language	English
Patent number	GB2364783B
IPC	G01K 15/00,G08B 31/00
Priority date	23/03/00
Filing date	19/03/01
Publication status	Published - 4 Feb 2004
Externally published	Yes

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Process monitoring and control using self-validating sensors
Henry, M. (Inventor), Sandoz, D. J. (Inventor) & Clarke, D. W. (Inventor), 9 Nov 2004, IPC No. G01K 15/00, G08B 31/00, Patent No. US6816810B2, 23 Mar 2001, Priority date 23 Mar 2000, Priority No. GB0007065A
Research output: Patent
Process monitoring and control using self-validating sensors
Henry, M. P. (Inventor), Sandoz, D. J. (Inventor) & Clarke, D. W. (Inventor), 6 Feb 2002, IPC No. G08B 29/02, Patent No. GB2364783A, 19 Mar 2001, Priority date 23 Mar 2000, Priority No. GB0007065A
Research output: Patent

Open Access
Process monitoring and control using self-validating sensors
Henry, M. (Inventor), Sandoz, D. J. (Inventor) & Clarke, D. W. (Inventor), 11 Apr 2002, IPC No. G06F 15/00 , Patent No. US2002042694A1, 23 Mar 2001, Priority date 23 Mar 2000, Priority No. GB20000007065A
Research output: Patent

Cite this

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AB - A multi-level (hierarchical) process monitoring system comprises a process monitoring unit (14), at a higher level of the system, and a plurality of sensors (SEVA 1, SEVA 2 ... SEVA 36) at a lower level of the system, at least one of the sensors having SEVA capability (self-validating capability), the sensors being adapted to provide respective measurement values of respective process variables to said monitoring unit, said monitoring unit being so arranged as to monitor the outputs of the sensors and to identify any significant apparent change in the process conditions as detected from an overview of said sensor outputs, and on detection of an apparent significant change, to request additional status information from at least one of the SEVA sensor/s to determine whether the apparent change is in reality due to a change in the characteristics of a particular SEVA sensor rather than an actual significant change in the process conditions.

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Process monitoring and control using self-validating sensors

Abstract

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