Error encoding algorithms for networked control systems

We propose and validate algorithms for choosing finite word length priorities for dynamically scheduled networked control systems. Two schemes for selecting priority levels are studied, the first with a fixed arbitrary grid and the second with an auto-scaling grid. We prove that the system is uniformly and ultimately bounded in the case of the static encoding, and asymptotically stable with the auto-scaling methodology. Simulations of an inverted pendulum controller using these schemes are compared against a controller with point-to-point wiring.

[1]  Linda Bushnell,et al.  Stability analysis of networked control systems , 1999, Proceedings of the 1999 American Control Conference (Cat. No. 99CH36251).

[2]  O. Beldiman,et al.  Asymptotic behavior of networked control systems , 1999, Proceedings of the 1999 IEEE International Conference on Control Applications (Cat. No.99CH36328).

[3]  J. A. Sparks,et al.  Low cost technologies for aerospace applications , 1997, Microprocess. Microsystems.

[4]  R.S. Raji,et al.  Smart networks for control , 1994, IEEE Spectrum.

[5]  Asok Ray,et al.  Performance Evaluation of Medium Access Control Protocols for Distributed Digital Avionics , 1987 .

[6]  D. Radford,et al.  Spread spectrum data leap through AC power wiring , 1996 .

[7]  Umit Ozguner,et al.  Automotive suspension control through a computer communication network , 1992, [Proceedings 1992] The First IEEE Conference on Control Applications.