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Design of equivalent one-time model of multivariable multi-stage control system

Barabanov A, Kramar V., Świć A., Taranenko V.

Applied Computer Science

2008

Vol. 4, no 1

1--17

If a control system contains a few digital chains of treatment of information with different periods of quantum, its research is strongly complicated. In the case of rational commensurable periods of quantum transformation of a multirate system it is possible to design an equivalent one-time system with enhanceable dimension. The general going is offered to the design of an equivalent one-time system, allowing to transform the vectorial-matrix model of the initial multirate system into a vectorial-matrix one-time model of the system, characteristic for vectorial-matrix models of multidimensional continuous systems. Due to that, it becomes possible, in principle, to transfer of methods of analysis of continuous multidimensional systems onto the class of digital-analogue multirate systems.

A method of concurrent diagnosis of digital/analogue systems, with application of microanalyzers and the standard test bus

Kern J.

Prace Naukowe Instytutu Górnictwa Politechniki Wrocławskiej. Konferencje

1999

Vol. 86, nr 24

138-146

The paper presents the method and the distributed diagnostic system for concurrent diagnosis of digital/analogue systems. According to the assumptions, the diagnostic procedure is partitioned into three consecutive procedure levels (signal acquisition level, error identification level, compliance testing level). Each level corresponds to the particular subprocedure and the different diagnostic subsystem. The signal acquisition subprocedure is performed concurrently according to the tasks of the system under diagnose, with a Diagnostic tester (DT). The reliability state of DT is independent of the reliability states of the diagnosed objects. The architecture of the Diagnostic Tester (DT) is distributed, with application of a set of microanalyser modules, integrated by the standard, JTAG serial Test Bus. The other diagnostic subprocedures are realised after tasks, finished by the System Under Diagnose (SUD), with software modules, which could be installed in the SUD controller environment. The presented pilot concurrent Diagnostic System was implemented and verified as the diagnostic tool for a digital. analogue test-measurement system.