Comparison of Event-Triggered and Time-Triggered Concepts with Regard to Distributed Control Systems

This paper compares event-triggered and time-triggered concepts from the control theory point of view. For that purpose, the requirements of distributed control systems are summarized and advantages and disadvantages of both concepts are elaborated by hand of dierent criteria. These are, for instance, the ability to react to asynchronous events, the system design and scheduling, the synchronization problem, and the compensation of latency and jitter in the control loop. The results are highlighted with the aid of theoretical examinations and real measurements based on the event-triggered CAN and its time-triggered version TTCAN.

[1]  Hermann Kopetz,et al.  Real-time systems , 2018, CSC '73.

[2]  Donal Heffernan,et al.  TTCAN: a new time-triggered controller area network , 2002, Microprocess. Microsystems.

[3]  Amos Albert,et al.  Distinctness of Reaction - Ein Messverfahren zur Beurteilung von Echtzeitsystemen (Teil 2) (Distinctness of Reaction - A Method for the Evaluation of Real-Time Systems (Part 2)) , 2003 .

[4]  Donal Heffernan,et al.  Time-triggered controller area network , 2001 .

[5]  T. Führer,et al.  Time Triggered Communication on CAN ( Time Triggered CAN-TTCAN ) , 2000 .

[6]  Hermann Kopetz,et al.  A Comparison of CAN and TTP , 2000 .

[7]  Henrik Lönn,et al.  A comparison of fixed-priority and static cyclic scheduling for distributed automotive control applications , 1999, Proceedings of 11th Euromicro Conference on Real-Time Systems. Euromicro RTS'99.

[8]  Heinrich Husmann,et al.  Ein Beitrag zur Untersuchung des dynamischen Verhaltens feldbusbestützter Regelkreise , 1997 .

[9]  Astrom.  Computer Controlled Systems , 1990 .

[10]  Holger Zeltwanger,et al.  Time-Triggered Communication on CAN , 2002 .

[11]  S. Kawasaki,et al.  Springer Verlag, Berlin, Heidelberg, New York (1995) , 1996 .

[12]  Björn Wolter,et al.  Messung der Dienstgüte von Echtzeitbetriebssystemen durch Walsh-Korrelation , 2002 .

[13]  Johan Nilsson,et al.  Real-Time Control Systems with Delays , 1998 .

[14]  Gene F. Franklin,et al.  Digital control of dynamic systems , 1980 .

[15]  R. Hugel,et al.  Fault tolerant TTCAN networks , 2002 .

[16]  Patrick Leteinturier,et al.  TTCAN from applications to products in automotive systems , 2003 .

[17]  Martin Törngren,et al.  Timing Problems in Distributed Real-Time Computer Control Systems , 1997 .

[18]  Amos Albert,et al.  Migration from CAN to TTCAN for a Distributed Control System , 2003 .

[19]  Amos Albert,et al.  Evaluation and Comparison of the Real-Time Performance of CAN and TTCAN , 2003 .

[20]  Asok Ray,et al.  An observer-based compensator for distributed delays , 1990, Autom..

[21]  Traian Pop,et al.  Scheduling and Optimisation of Heterogeneous Time/Event-Triggered Distributed Embedded Systems , 2003 .

[22]  Bruce A. Francis,et al.  Optimal Sampled-Data Control Systems , 1996, Communications and Control Engineering Series.

[23]  Wilfried Gerth,et al.  Distinctness of Reaction – Ein Messverfahren zur Beurteilung von Echtzeitsystemen (Teil 1) (Distinctness of Reaction – A Method for the Evaluation of Real-Time Systems) , 2003 .

[24]  C. Siva Ram Murthy,et al.  Resource management in real-time systems and networks , 2001 .

[25]  Anton Cervin,et al.  Integrated Control and Real-Time Scheduling , 2003 .

[26]  Michael J. Muller,et al.  Requirements specification , 2002 .

[27]  José Alberto Fonseca,et al.  The FTT-CAN protocol: why and how , 2002, IEEE Trans. Ind. Electron..