Computer Control Systems With Critical Safety Applications: Problems And Some Solutions
Journal Title: Journal of Information Technology and Application (JITA) - Year 2017, Vol 7, Issue 2
Abstract
Safety Critical Systems (SCS) are defined as systems controlling critical technological processes, on the proper functioning of which depends human safety. The taxonomy of concepts related to SCS is presented as a dendritic classification scheme. The emphasis is on hierarchical relationships between concepts. After studying global scientific literature, international standards and corporate materials, a classification of the scientific issues accompanying the creation of new SCSs was made. Regarding a part of the broached issues, technical solutions are suggested based on the structural system of the system. In particular, methods and means have been developed to detect and tolerate failures and errors in building the structure and to reduce their adverse impact on the functionality and safety of the systems. Formal models have been developed, concerning which calculations and studies have been performed. Quantitative dependencies are established between the technical and probability parameters of diversity structure on the one hand and the reliability and safety of the system on the other. Conclusions are drawn as regards the practical application of the methods and models.
Authors and Affiliations
Hristo Hristov Mariya Hristova
MODEL FOR MANAGING SOFTWARE DEVELOPMENT PROJECTS BY FIXING SOME OF THE SIX PROJECT MANAGEMENT CONSTRAINTS
This study is focused on the software development process, viewed from perspective of information technology project manager. Main goal of this research is to identify challenges in managing such projects and provide a m...
USING 3D MODELS FOR IMPROVING FACE RECOGNITION
Face recognition algorithm Principal Component Analysis (PCA) has a signifi cant performance drop when comparing photographs taken from different angle. In this paper a 3D model was used for improving that performance. M...
HYBRID METHODOLOGY OF NONLINEAR GOAL PROGRAMMING
What we demonstrate here is a nonlinear goal-programming (NGP) algorithm based on hybrid connection of the modifi ed simplex method of goal programming, gradient method of feasible directions and method of optimal displa...
SIMULATION OF ELECTRIC DRIVE WITH DIRECT TORQUE CONTROL OF INDUCTION MOTOR
The main requirements for traction electric drives are listed and discussed. The direct torque control of an induction motor electric drive is established by a survey of operation modes of traction electric drives to tho...
CUSTOMER SATISFACTION AS A SIGNIFICANT MEASURE OF SUCCESSFUL ERP IMPLEMENTATION
The measuring of implemented ERP system’s effi ciency is in any case multidimensional. Various researchers dedicated a lot of attention trying to fi nd the best way to measure the success or the effectiveness of ERP solu...