Title :
Network access protocols for real-time distributed control systems
Author_Institution :
Dept. of Mech. Eng., Pennsylvania State Univ., University Park, PA, USA
Abstract :
The concepts for pertinent network parameters are introduced, and an analytical base for system design is established. A simulation methodology has been developed for performance evaluation of real-time control system networks for distributed dynamical processes (e.g. autonomous manufacturing), electric power and chemical plants, and aircraft and spacecraft. The network-induced delays, resulting from data latencies, data loss, and missynchronism between system components, degrade the dynamic performance of the controlled process and are a source of potential instability. The impact of delays induced by different network access protocols on the control system performance is investigated. The results of combined discrete-event and continuous-time simulation are presented
Keywords :
computer networks; control systems; distributed control; performance evaluation; protocols; aircraft; autonomous manufacturing; chemical plants; data latencies; data loss; network access protocols; network-induced delays; performance evaluation; power plants; real-time distributed control systems; simulation methodology; spacecraft; Access protocols; Aerospace control; Aircraft manufacture; Chemical processes; Control system synthesis; Control systems; Distributed control; Manufacturing processes; Real time systems; Virtual manufacturing;
Journal_Title :
Industry Applications, IEEE Transactions on
