747 KB36 KB198520252007Colnarič, MatjažŠprogar, MatejVerber, Domenštevilka:1letnik:37str. 23-30ISSN:0352-9045COBISSID:11552534URN:URN:NBN:SI:doc-O2AB55UGenStrokovno društvo za mikroelektroniko, elektronske sestavne dele in materialeInformacije MIDEMdetekcija napakevolucijsko učenjekrmilni sisteminadzorne celicenapakeImplementation of non-intrusive fault detection in embedded control systems|Paper presents fault detection in embedded control systems by the so-called monitoring cells. The basic idea is to monitor input/output variables and internal states of systems, processes or sub-processes by using acquired and built-in knowledge about the normal behavior in order to detect abnormalities. Paper gives the detailed architecture and the operation of the monitoring cells. The concept is applicable even if only a limited knowledge about the control system is available. In such cases the proposed automated learning of the monitoring function can be used. In the second part, two different implementations of the monitoring celi are presented. The first one uses discrete analogue devices and a field programmable gate array. The secondis based on the programmable system-on-a-chip devicesČlanek predstavlja detekcijo napak v vgrajenih sistemih s tako imenovanimi nadzornimi celicami. Osnovna ideja je nadzor vhodno/izhodnih spremenljivk in notranjih stanj sistemov, procesov in podprocesov z uporabo pridobljenega in vgrajenega znanja o normalnem obnašanju in z namenom prepoznati nepravilnosti. Članek podrobno predstavlja arhitekturo in delovanje nadzornih celic. Koncept je uporaben tudi, kadar je na razpolago le omejeno poznavanje krmilnega sistema. V takšnih primerih se lahko uporabi predlagano avtomatsko učenje nadzorne funkcije. V drugem delu sta predstavljeni dve različni izvedbi nadzorne celice. Prva uporablja diskretne analogne enote in programirljiva FPGA vezja, druga pa temelji na programirljivih sistemih na čipu (pSoC)TEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaStrokovno društvo za mikroelektroniko, elektronske sestavne dele in materiale