Safety-related instrumentation and control systems and a problem of the hidden faults

Author

Drozd, M. ; Drozd, A.

Author_Institution

Inst. of Comput. Syst., Odessa Nat. Polytech. Univ., Odessa, Ukraine

fYear

2014

fDate

9-11 July 2014

Firstpage

64

Lastpage

67

Abstract

This paper is dedicated to a problem of the hidden faults associated with development of the computer systems in form of their transformation into safety-related instrumentation and control systems. The hidden faults do not allow ensuring functional safety by construction of fault tolerant digital component without consideration of their checkability. Increase of checkability by imitation of accident is exposed to an unacceptable risk of transition into an emergency mode. The approaches to solving the problem during operational time using the methods for improvement of checkability in a normal mode and with analysis of both normal and emergency modes are offered.

Keywords

instrumentation; power engineering computing; power system faults; safety; checkability; computer systems; control systems; emergency mode; fault tolerant digital component; hidden faults; safety-related instrumentation; Circuit faults; Computers; Controllability; Fault tolerant systems; Safety; Testing; checkability; digital component; functional safety; hidden fault; normal and emergency modes; safety-related instrumentation and control system;

fLanguage

English

Publisher

ieee

Conference_Titel

Digital Technologies (DT), 2014 10th International Conference on

Conference_Location

Zilina

Type

conf

DOI

10.1109/DT.2014.6868692

Filename

6868692