Title :
Scheduling transmissions in time-critical distributed systems
Author :
Cavalieri, S. ; Di Stefano, A. ; Mirabella, O.
Author_Institution :
Istituto di Inf. e Telecommun., Catania Univ., Italy
Abstract :
For a distributed system in factory automation featuring periodic processes with stringent time constraints, off-line scheduling is necessary, as it can guarantee that all the information produced will be delivered on time. As the size of the produced scheduling tables recording the transmission sequences can be very large, in this paper we dealt with the problem of reducing these tables, still maintaining a correct scheduling. The cost of this compression is a waste of bandwidth which will affect the acyclic traffic which is always present in addition to the cyclic traffic. The authors evaluate the influence of this bandwidth degradation of the system performances
Keywords :
computer interfaces; data communication; distributed parameter systems; factory automation; field buses; process control; scheduling; acyclic traffic; bandwidth degradation; cyclic traffic; data transmission; factory automation; field buses; off-line scheduling; periodic processes; stringent time constraints; system performances; time critical process control; time-critical distributed systems; transmissions scheduling; Bandwidth; Communication system traffic control; Costs; Degradation; Field buses; IEC standards; Manufacturing automation; Performance evaluation; Process control; Time factors;
Conference_Titel :
Industrial Electronics, 1995. ISIE '95., Proceedings of the IEEE International Symposium on
Conference_Location :
Athens
Print_ISBN :
0-7803-7369-3
DOI :
10.1109/ISIE.1995.497039
