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This paper is devoted to a problem of on-line testing efficiency in digital components of safety-related systems taking into account their design for operation in two modes: normal and emergency. Approach to increase of on-line testing method trustworthiness in checking of approximate results is offered. Approach is based on distinguishing of the essential and inessential errors caused by faults of...
This paper is devoted to the development of objects and methods in on-line testing. Requirements imposed to computer systems and on-line testing of their digital components are analyzed in efficiency of use of resources and in restriction of the hidden processes. The low level of execution of these requirements in the modern computer systems and in circuits of on-line testing because of domination...
Influence of safety-critical Instrumentation and Control systems (I&CS) particularities on checkability of their digital components are examined. The natural resources which can be used for increasing checkability of the digital components are analyzed. Natural resources of digital components developed as multi-version system with strongly connected versions are considered. The checkability-oriented...
Particularities of on-line testing for digital components in safety-critical Instrumentation and Control systems (I&CS) are analyzed. A problem of on-line testing associated with insufficient checkability of the digital components in safety-critical I&CS (reactor trip system) is considered. A method of checkability estimation is offered. An example of comparator checkability assessment is...
This paper addresses to questions of on-line testing for the computing circuits processing the approximate data. A problem of low reliability of on-line testing methods in checking the result is considered. This problem is connected to ignoring the natural time redundancy, which allows detecting the errors produced by the circuit fault during some interval of time. It reduces detection probability...
The article is devoted to use wavelet transform, that have properties of frequency-spatial selectivity, and detect information elements of object (for example, contour) with required detailed elaboration. The morphological operator on wavelet transform base was developed. It allows receiving the contour description at different hierarchy levels. The algorithm of getting contour points on a base of...
The adaptive clustering in hyperbolic wavelet transforming domain is designed. Such approach allows inspected the production process of electronic apparatus in case of parameters correlation and high level noise.
This paper addresses the problem of on-line testing of floating-point computing circuits. The problem is connected with the use of the truncated operations in the part of mantissas processing. The arithmetic shift performed on a Barrel-shifter is the most often used truncated operation. Known approaches to on-line testing of the Barrel-shifter are based on duplication of the truncated operation or...
The integrated circuits photo masks diagnostics in the automated optical inspection system is developed. This low error probability system based in application of hyperbolic wavelet transforming and photo masks fiducial geometric moment features. The experimental results proved the high noise stability property, which allows reducing lighting apparatus and high precision mechanism conditions.
The technique of application of the hierarchical approach to allocation and the analysis of contours in space hyperbolic wavelet transformations is developed at processing images of cutting tools. The offered technique allows to spend the analysis of attributes of deterioration of cutting tools with a different level of detailed elaboration and to create hierarchical methods of processing and recognition...
In this thesis, the visual information processing systems design and efficiency criteria are discussed. The visual information processing systems (VIPS) are the component of the automatizated control and inspection systems. The important direction in the development of VIPS is a design of the adaptive systems, which are capable of changing its parameters depending on varied inspection conditions....
The hyperbolic wavelet transforming base for generalized functions domain is designed. This base allows to improve the edge intensities and to control the specification rate. Experimental results for an image line in the HWT domain for a low scale and high scale are presented.
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