A practical fault detection scheme based on a model discrimination approach is proposed for dynamical systems with various failure modes which can not he explicitly described by mathematical representations. Using ARX...
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A practical fault detection scheme based on a model discrimination approach is proposed for dynamical systems with various failure modes which can not he explicitly described by mathematical representations. Using ARX modelling, the Kullback Discrimination Information (KDI) is adopted as a model distortion measure to detect dynamics failures. In order to calculate the KDI for finite but large data sets with-out dealing with very large matrices, we derive an iterative algorithm of low dimension based on Baye' rule. The KDI is used as a detection index in a thresholding approach. This detection scheme can be combined with identification to diagnose the system operating mode. The effectiveness of the method has been confirmed through a simulation study of a second order servo system.
The Kullback discrimination index can be used to test whether two models obtained from different data sets are equal or not. Such an index can be used for model validation, which then is carried out as a crossvalidati...
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The Kullback discrimination index can be used to test whether two models obtained from different data sets are equal or not. Such an index can be used for model validation, which then is carried out as a crossvalidation. However, the form of the index and its implementation differ from traditional crossvalidation. Some simple validation criteria are developed from this index, and also numerically illustrated.
An efficient two-level algorithm is developed for parameter estimation using the multiple projection approach. The optimal minimum variance estimate is achieved using a fixed number of iterations. Both the recursive a...
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A second-order nonlinear model of steel refining in an electric are furnace is formulated and optimized. Iterative computation using steepest descent shows the existence of an optimal singular are, which is then found...
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The series Advances in Industrial control aims to report and encourage technology transfer in controlengineering. The rapid development of control technology has an impact on all areas of the control discipline. New ...
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ISBN:
(数字)9781846283345
ISBN:
(纸本)9781852339821;9781849969895
The series Advances in Industrial control aims to report and encourage technology transfer in controlengineering. The rapid development of control technology has an impact on all areas of the control discipline. New theory, new controllers, actuators, sensors, new industrial processes, computer methods, new applications, new philosophies , new challenges. Much of this development work resides in industrial reports, feasibility study papers and the reports of advanced collaborative projects. The series offers an opportunity for researchers to present an extended exposition of such new work in all aspects of industrial control for wider and rapid dissemination. In some areas of manufacturing, the elements of a flexible manufacturing system form the key components of the process line. These key components are four-fold: a set of programmable robots and machines, an automated materia- handling system that allows parts to be freely routed and re-routed, a buffer storage system where parts and partly-assembled components can wait until required for further processing and assembly and finally, a supervisory control system. The technology employed to coordinate and control all these components as a working system is usually based on programmable logic controllers. The use of this automation hardware and software in manufacturing is designed to yield significant cost reductions and to enhance quality.
This dictionary contains terms from the fields of automatic control, which includes mathematical modelling, simulation of dynamic systems, automation technology with its corresponding elements, and robotics. It also i...
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ISBN:
(数字)9783031357558
ISBN:
(纸本)9783031357541;9783031357572
This dictionary contains terms from the fields of automatic control, which includes mathematical modelling, simulation of dynamic systems, automation technology with its corresponding elements, and robotics. It also includes signal processing, information technologies and production technologies.;The terminological dictionary is primarily aimed at experts and students who deal with control technology and dynamic systems in both technical and non-technical domains. To be able to use the dictionary, at least basic knowledge in this field is required. In the dictionary users will find concise terminological definitions. A concept may be designated by different terms; therefore, cross-references are used. The aim of the dictionary is to collect and unify – at least to an achievable extent – the terminology in the field of automatic control, dynamic systems and robotics.
The two-volume set LNCS 7565 and 7566 constitutes the refereed proceedings of three confederated international conferences: Cooperative Information systems (CoopIS 2012), Distributed Objects and Applications - Secure ...
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ISBN:
(数字)9783642336065
ISBN:
(纸本)9783642336058
The two-volume set LNCS 7565 and 7566 constitutes the refereed proceedings of three confederated international conferences: Cooperative Information systems (CoopIS 2012), Distributed Objects and Applications - Secure Virtual Infrastructures (DOA-SVI 2012), and Ontologies, DataBases and Applications of SEmantics (ODBASE 2012) held as part of OTM 2012 in September 2012 in Rome, Italy. The 53 revised full papers presented were carefully reviewed and selected from a total of 169 submissions. The 22 full papers included in the first volume constitute the proceedings of CoopIS 2012 and are organized in topical sections on business process design; process verification and analysis; service-oriented architectures and cloud; security, risk, and prediction; discovery and detection; collaboration; and 5 short papers.
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