Alarm information in fault diagnosis
Alarm information in fault diagnosis
The presentation of alarm information is not always compatible with the response required by the operator. It was therefore considered necessary to find out what operators do with alarm information. These investigations took the form of interviews, questionnaires and observations. The findings suggest six identifiable stages in alarm handling, namely: observe, accept, analyse, investigate, correct and monitor. Each of these stages have different information requirements, and some of these may be in conflict with each other. It is proposed that better definition of 'alarms' coupled with improved presentation of alarm media could offer substantial benefits to the operator. These benefits should ideally be measurable in terms of: time to diagnosis, mental workload, number of control actions, success of control actions, quality of diagnosis and output performance. This approach is counter to alarm reduction techniques, which have successfully reduced the number of alarms present, but have not always produced corresponding improvements in the operator's performance. This is because the apparent redundancy of the information may hide its usefulness in keeping the operator abreast of the state of the process and developments therein, as well as aiding the diagnosis task.
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Stanton, Neville A.
351a44ab-09a0-422a-a738-01df1fe0fadd
Stanton, Neville A.
351a44ab-09a0-422a-a738-01df1fe0fadd
Stanton, Neville A.
(1991)
Alarm information in fault diagnosis.
IEE Colloquium on Condition Monitoring for Fault Diagnosis, London, United Kingdom.
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
The presentation of alarm information is not always compatible with the response required by the operator. It was therefore considered necessary to find out what operators do with alarm information. These investigations took the form of interviews, questionnaires and observations. The findings suggest six identifiable stages in alarm handling, namely: observe, accept, analyse, investigate, correct and monitor. Each of these stages have different information requirements, and some of these may be in conflict with each other. It is proposed that better definition of 'alarms' coupled with improved presentation of alarm media could offer substantial benefits to the operator. These benefits should ideally be measurable in terms of: time to diagnosis, mental workload, number of control actions, success of control actions, quality of diagnosis and output performance. This approach is counter to alarm reduction techniques, which have successfully reduced the number of alarms present, but have not always produced corresponding improvements in the operator's performance. This is because the apparent redundancy of the information may hide its usefulness in keeping the operator abreast of the state of the process and developments therein, as well as aiding the diagnosis task.
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e-pub ahead of print date: 18 October 1991
Venue - Dates:
IEE Colloquium on Condition Monitoring for Fault Diagnosis, London, United Kingdom, 1991-10-18
Organisations:
Transportation Group
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Local EPrints ID: 366897
URI: http://eprints.soton.ac.uk/id/eprint/366897
PURE UUID: 5ea3e77a-24bc-43d6-8c77-1ca25baa239b
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Date deposited: 18 Jul 2014 14:20
Last modified: 15 Mar 2024 03:33
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