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IEE Colloquium on Condition Monitoring for Fault Diagnosis

18 Oct 1991

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  • Expert systems for condition monitoring, fault diagnosis and control

    Publication Year: 1991, Page(s):1/1 - 1/3
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (204 KB)

    Advanced software techniques such as artificial intelligence are now providing industry with a range of tools that allow successful condition monitoring and fault diagnostic systems to be built and deployed effectively in industry. This paper briefly looks at the types of faults that have been and are being addressed, the results of the early work in this area (and the reasons why some of this was... View full abstract»

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  • LORA: an alarm handling software package

    Publication Year: 1991, Page(s):4/1 - 414
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (532 KB)

    Illustrates how the LORA (Logical Reduction of Alarms) software package implements the technique of alarm handling. Since alarm handling requires the recognition of plant state it is possible to generate status alarms which can provide some limited fault diagnosis of the plant. LORA's speed makes it possible to provide a continuous real-time picture of the plant to the operator. In addition, the e... View full abstract»

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  • Design of on-line expert systems to diagnose problems in high speed letter sorting

    Publication Year: 1991, Page(s):7/1 - 7/3
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (148 KB)

    Discusses some of the issues arising from the application of online diagnostic techniques to provide information about the performance of a high speed letter sorter used by the British Post Office. The paper first outlines the sorting machine and then it describes how the expert system installed in an external processor can provide guidance for three classes of user: the operator, the maintainer a... View full abstract»

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  • IEE Colloquium on `Condition Monitoring for Fault Diagnosis' (Digest No.156)

    Publication Year: 1991
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (96 KB)

    The following topics were dealt with: expert systems for condition monitoring, fault diagnosis and control; detection of faulty sensors in aero jet engine systems using robust model-based methods; a surgeon's view of total process surveillance in a process plant; an alarm handling software package (LORA); the development of expert systems for process monitoring in British Nuclear Fuels; condition ... View full abstract»

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  • Total process surveillance: a surgeon's eye view on a process plant

    Publication Year: 1991, Page(s):3/1 - 3/5
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (220 KB)

    A total process surveillance (TOPS) system is under development which can provide, in real time, additional process information from a limited number of raw measurement signals. This is achieved by using a robust model-based observer to generate estimates of the process' internal states. The state estimates contribute towards prompt and successful incipient (slowly developing) fault detection. A h... View full abstract»

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  • Condition monitoring in automated manufacture

    Publication Year: 1991, Page(s):6/1 - 6/4
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (188 KB)

    The experience gained through work with European and UK manufacturing companies has led to the following conclusions. Automation is creating a need and an expectation for condition monitoring. Integration of condition monitoring with machine operation in some scenarios is a necessity rather than a luxury. Integration is needed at two levels: the machine control level and the management control lev... View full abstract»

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  • Alarm information in fault diagnosis

    Publication Year: 1991, Page(s):9/1 - 9/5
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (384 KB)

    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... View full abstract»

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  • Detection of faulty sensors in aero jet engine systems using robust model-based methods

    Publication Year: 1991, Page(s):2/1 - 222
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1336 KB)

    Reviews the published state-of-the-art of research into fault diagnosis methods for jet engine systems using model-based (in contrast to knowledge-based) methods, with a particular emphasis on robustness with respect to modelling errors and unmeasurable disturbances. Reference is made to an important forum of activity in the field-an international technical cooperation panel which is investigating... View full abstract»

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  • The development of expert systems for process monitoring in British Nuclear Fuels

    Publication Year: 1991, Page(s):5/1 - 5/9
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (452 KB)

    British Nuclear Fuels plc (BNFL) became involved in the development of the application of expert systems technology for the monitoring of process plants, during 1983. This paper describes the development work which has been undertaken to date and the role of the installed systems. The pilot system was called PROMASS (Process Management Advisory and Supervisory system) and was based upon the operat... View full abstract»

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  • Fault diagnosis in safety-critical systems

    Publication Year: 1991, Page(s):8/1 - 8/4
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (244 KB)

    Considers how the fault diagnosis problem is addressed in two product ranges designed by AEA Technology, one a hard-wired automatic shutdown system (PCL) and the other a computer-based protection system (ISAT). These products though primarily produced to provide high integrity systems for the nuclear industry are equally applicable to any other safety-critical process. Failsafe design together wit... View full abstract»

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