This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
A Worst Case Formula for a Communication and Computation Delay in NCS.
Technical Paper
2010-36-0358
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
A major trend in modern aerospace and automotive systems is to integrate computing, communication and control into different levels of the vehicle and/or its supervision. A well-fitted architecture adopted by this trend is the common bus network architecture. A Networked Control System (NCS) is called when the control loop is closed through a communication network. The presence of this communication network introduces new characteristics that must be considered at the design time of a control system. This work, still in development, focuses on a worst case formula for a communication (TDMA) plus computation (RMS) on a NCS. This formula, in a first instance, agrees with the simulated cases under the hypotheses and conditions when the NCS is composed by 1 actuator - 1 sensor and when is composed by 2 actuators - 2 sensors. In the future, we intend to generalize this formula and extend this study to NCS that uses other communication protocols or others computer schedulers.
Authors
Citation
Valdivia, R. and de Oliveira e Souza, M., "A Worst Case Formula for a Communication and Computation Delay in NCS.," SAE Technical Paper 2010-36-0358, 2010, https://doi.org/10.4271/2010-36-0358.Also In
References
- Stankovic, J. “Misconceptions About Real-Time Computing: A Serious Problem for Next-Generation Systems” IEEE Computer 21 10 10 19 October 1988
- Raji, R. “Smart network for control” IEEE Spectrum 31 6 49 55 1994
- Liu, C. L. Layland, James W. “Scheduling Algorithms for Multiprogramming in a Hard-Real-Time Environment” Journal of the ACM (JACM) 20 1 January 1973
- Joseph, M. Pandya, P. Finding response times in a real-time system The Computer Journal 29 5 390 395
- Valdivia, R.H.V. Influência dos agendadores da computação (RMS) e da comunicação (TDMA) na estabilidade de um sistema de controle por rede PhD Thesis 2009
- Cervin, A. Henriksson, D. Lincoln, B. Eker, J. Årzén, K. “How Does Control Timing Affect Performance?” IEEE Control Systems Magazine 23 3 16 30 June 2003