Title :
New approaches for distributed industrial process control systems aimed to cope with strict time constraints
Author :
Halang, Wolfgang A.
Author_Institution :
Coordinated Sci. Lab., Illinois Univ., Urbana, IL, USA
Abstract :
Four approaches aimed to cope with strict timing constraints as encountered in industrial process control applications are presented. For each node in a distributed system, an asymmetrical two-processor architecture is used that is capable of guaranteeing response times. One processor in each node is dedicated to the kernel of a real-time operating system. Its three reaction levels are constructively described by outlining their functional units and control procedures. It is shown that some problems of real-time computers can be solved by endowing the node computers with process peripherals
Keywords :
computer architecture; multiprocessing systems; operating systems (computers); process computer control; process computers; real-time systems; asymmetrical two-processor architecture; distributed industrial process control; fault tolerance; graceful degradation; kernel; load sharing; node computers; process peripherals; reaction levels; real-time operating system; strict time constraints; synchronisation; Computer architecture; Computer peripherals; Delay; Electrical equipment industry; Industrial control; Kernel; Operating systems; Process control; Real time systems; Timing;
Conference_Titel :
Real Time, 1989. Proceedings., Euromicro Workshop on
Conference_Location :
Como
Print_ISBN :
0-8186-1956-2
DOI :
10.1109/EMWRT.1989.43451
