Title :
A scheduling method for network-based control systems
Author :
Park, Hong Seong ; Kim, Yong Ho ; Kim, Dong-Sung ; Kwon, Wook Hyun
Author_Institution :
Dept. of Electr. & Comput. Eng., Kangwon Nat. Univ., Chuncheon, South Korea
fDate :
5/1/2002 12:00:00 AM
Abstract :
This paper presents a scheduling method for network-based control systems with three types of data (periodic data, sporadic data, and messages). As a basic parameter for the scheduling method for network-based control systems, a maximum allowable delay bound is used,which guarantees stability of network-based control systems and is derived from characteristics of the given plant using the presented theorems. The presented scheduling method for network-based control systems can adjust the sampling period as small as possible, allocate the bandwidth of the network for three types of data, and exchange the transmission orders of data for sensors and actuators. In addition, the presented scheduling method guarantees real-time transmission of sporadic and periodic data, and minimum utilization for nonreal-time messages. The proposed method is shown to be useful by examples
Keywords :
controller area networks; delays; field buses; industrial control; sampled data systems; scheduling; stability; bandwidth allocation; maximum allowable delay bound; messages; network-based control systems; periodic data; real-time transmission; sampling period adjustment; scheduling method; sporadic data; stability; transmission order exchange; Actuators; Bandwidth; Control systems; Delay systems; Feedback control; Niobium compounds; Real time systems; Sampling methods; Sensor phenomena and characterization; Stability;
Journal_Title :
Control Systems Technology, IEEE Transactions on
