Naslov
Software Influence on Fault-Tolerant Microprocessor System Fault Detection and Recovery

Autori
Hocenski, Željko

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Tagesband, XV Internationales wissenschaftliches Kolloquium / Hartmut Greger - Bremen : Hochschule Bremen, 1999, 17-22

Skup
XV Internationales wissenschaftliches Kolloquium Wissenschaft fuer Praxis

Mjesto i datum
Njemačka, 18.04.1999. - 20.04.1999

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Sažetak
The fault-tolerant system in this paper is based on cold standby actualization and software redundancy. It is a microprocessor modular system. It consists of standard nonredundant modules and specific additional modules. The fault-tolerant control system performs the validation of the active microprocessor unit and the actualization of the spare unit. In the case of the active unit failure the control from the failed active unit is switched to the spare unit. The fault detection is based on watchdog timer, checksums, data duplication etc. The evaluation of the fault- tolerant behavior of this system is performed by a fault injection in to the active unit bus lines performed by the fault injection system. The fault-tolerant system is tested for nonredundant and redundant software. The influence of the watchdog refresh period and the actualization of standby unit period on the number of detected failures on active and standby unit is registered. It was experimentally shown that fault tolerance of the system could be easy increased by using software redundancy and software methods.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA