Title :
Improved operation of networked control systems using Lebesgue sampling
Author :
McCann, Roy ; Gunda, Anil Kumar ; Damugatla, Suchit Reddy
Author_Institution :
Dept. of Electr. Eng., Arkansas Univ., Fayetteville, AR, USA
Abstract :
This paper introduces an improved network communication method for mission-critical real-time computer controlled processes. Based on Lebesgue sampling theory, this method is referred to as the timed event architecture/protocol (TEA/TEP). As an alternative the time-triggered protocol for control (TTP/C), TEP is designed to minimize the number of communication events on a communication bus and thereby reduce the cost and complexity of network control systems. Experimental results for an automated material handling system based on a modified controller area network (CAN 2.0b) protocol with a feedback motion control system are presented. These results demonstrate the benefits of TEP compared to conventional sampled data systems implemented with TTP/C.
Keywords :
control engineering computing; controller area networks; decentralised control; feedback; materials handling; motion control; protocols; sampled data systems; Lebesgue sampling; automated material handling system; communication bus; controller area network; feedback motion control system; mission-critical real-time computer controlled processes; network communication method; networked control systems; timed event architecture; timed event protocol; Automatic control; Communication system control; Computer networks; Control systems; Mission critical systems; Motion control; Networked control systems; Process control; Protocols; Sampling methods;
Conference_Titel :
Industry Applications Conference, 2004. 39th IAS Annual Meeting. Conference Record of the 2004 IEEE
Print_ISBN :
0-7803-8486-5
DOI :
10.1109/IAS.2004.1348567
