Model Prediction Algorithm and Co-Design of Time Delayed Networked Control Systems

Mary Reena K E, Abraham T Mathew, Lillykutty Jacob


The Unmanned Aerial System (UAS) uses moderately complex, embedded hardware and software for realization of the control objectives. In such systems, there is a necessity for networking various sensors, actuators and the controllers through a wireless medium. This leads to the need for careful examination of the quality of both the network and the control in a holistic sense, since the feedback loop is closed over the wireless network. We propose a co-design of control and communication algorithms to mitigate the time delay effects and to ensure certain degree of resilience. Modified Smith predictor and the Dynamic Matrix Control are the control strategies considered. Performance error of control loop becomes larger with the increase in network time delay, which would affect system stability. IEEE 802.15.4 wireless network standard is adopted in the present work for network environment. Higher priority is assigned to time-critical task in the mission mode of aerial vehicles through the optimized tuning of wireless network protocol parameters, in proportion to the associated control loop error values. The simulation results show the effectiveness of the controller designs, and verify the co-design algorithms as well. Co-design helps to alleviate the negative effects of time delay arising in the signal communicated through the wireless network.


networked control systems, unmanned aerial systems, modified Smith predictor, dynamic matrix control, IEEE 802.15.4 wireless network standard, co-design

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Y. Taş, A. Yesildirek and A. Sertbaş, “Development of a Networked Control System Platform for Unmanned Aerial Vehicles”, in International Conference on Computer Systems and Industrial Informatics (ICCSII), 2012, pp. 1-6.

H. Chao, Y. Cao and Y. Chen, “Autopilots for Small Unmanned Aerial Vehicles: A Survey”, Int. Journal on Control, Automation, and Systems, vol. 8, no. 1, 2010, pp. 36-44.

Y. Song, E. Rondeau and N. Boughanmi, “Online adaptation of the IEEE 802.15.4 parameters for wireless networked control systems”, in 8th IFAC International Conference on Fieldbuses and networks in industrial and embedded systems, Korea, 2009, pp.1-8.

G.-S. Tian, F. Xia and Y.-C. Tian, “Predictive Compensation for Variable Network Delays and Packet Loses in Networked Control Systems”, Computers & Chemical Engineering, 2012, pp. 152-162.

“Wireless Medium Access control(MAC)and Physical layer(PHY) specifications for Low-Rate Wireless Personal Area Networks(WPANs)”, 2006.

R. Gupta and M.-Y. Chow, “Networked Control System: Overview and Research Trends”, IEEE Transactions on Industrial Electronics, 2010 , pp. 2527-2535.

A. Ulusoy, O. Gurbuz and A. Onat, “Wireless Model Based Predictive Networked Control System Over Cooperative Wireless Network”, IEEE Transactions on Industrial Informatics, February 2011, pp. 41-51.

L.Dritsas, G. Nikolakopoulos and A. Tzes, “On the Modeling of Networked Control Systems” in 15th Mediterranean Conference, Athens, 2007, pp. 819-823.

L. Litz and A. Chamaken, “Joint Design of Control and Communication in Wireless Networked Control Systems: A Case Study”, in American Control Conference, Baltimore, 2010, pp.1835-1840.

M. Aykut Yigitel, Ozlem Durmaz Incel, Cem Ersoy”, QoS-aware MAC protocols for wireless sensor networks: A survey”, Jn. On Computer Networks, 2011, pp.1982-2004.

Eui-Jik Kim, Meejoung Kim, Sung-KwanYoum, Seokhoon Choi, Chul-Hee Kang, “Priority-based service differentiation scheme for IEEE 802.15.4 sensor networks”, Int. J. Electron. Commun. , 2007, pp. 69–81.

Christophe Aubrun, Daniel Simon, Ye-Qiong Song, “Co-design Approaches for Dependable Networked Control Systems”, Wiley, 2010.

G. Juanole, G. Mouney, and C. Calmettes. “On different priority schemes for the message scheduling in networked control systems” Proceeding of 16th Mediterranean Conference on Control and Automation, 2008, pp.1-6.

D. Atherton and S. Majhi, “Obtaining controller parameters for a new Smith predictor using auto tuning”, Automatica, 2000, pp. 1651-1658.

R. Matušů and R. Prokop, “Implementation of Modified Smith Predictors into a Matlab Program”, in 25th European Conference on Modelling and Simulation, Poland, 2011, pp.1-5.

C. Cutler and B. Ramaker, “Dynamic Matrix Control –A Computer Control Algorithm” in Joint Automatic Control Conference, San Francisco, CA, 1980, WP5-B.

J. S. Qin and T. A. Badgwell, “A Survey of Industrial Model Predictive Control Technology”, Control Engineering Practice, July 2003, pp. 733-764.

A.J.M. Raemaekers, “Design of a model predictive controller to control UAVs”, Technical Report, Royal Melbourne Institute of Technology, 2007, pp. 1-45.

D. Matko, M. Arh, I. Skrjanc, T.Tomazic, “Self-tuning Dynamic Matrix Control of two-axis autopilot for small aeroplanes” Proceeding of 9th Asian Control Conference, 2013, pp.1-6.

C. Bordons and E. F. Camacho, “Model Predictive Control”, London: Springer-Verlag , 1999.

G. Ruixia, W. L. Feng Xia, Tie Qiul and V. Alexey, “Performance Analysis of Non-Beaconed IEEE 802.15.4 for High-Confidence Wireless Communications”, in Baltic Congress on Future Internet and Communications, Riga, Latvia, 2011, pp. 83–89.

F. Xia, A. Vinel, R. Gao, L. Wang and T. Qiu, “Evaluating IEEE 802.15.4 for Cyber-Physical Systems”, EURASIP Journal on Wireless Communications and Networking, 2011, pp. 1-12.

P.Park, P.D Marco, C.Fishone, and K.H. Johansson, ”Adaptive IEEE 802.15.4 protocol for reliable and timely communications”, KTH, Tech.Rep., 2009.

J. Zhang, Z. Xiaoping and Z. Zhou, “Design of time delayed control systems in UAV using model based predictive algorithm”, in Second International Asia Conference in Control, Automation and Robotics, 2010, pp. 269-272.

Z. Peng and L. Jikai, “On New UAV Flight Control System Based On Kalman & PID”, in The 2nd International Conference on Intelligent Control and Information Processing, 2011, pp. 819-823.

Z. M.H., G. V and z. D, “A joint model for IEEE 802.15.4 physical and medium access control layers”, in 7TH International Conference on Wireless communication and Mobile Computing, Istanbul, July 2011, pp. 814-819.



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