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Toward Embedded System Resources Relaxation Based on the Event-Triggered Feedback Control Approach

Author

Listed:
  • Andrej Sarjaš

    (Faculty of Electrical Engineering and Computer Science, University of Maribor, 2000 Maribor, Slovenia)

  • Dušan Gleich

    (Faculty of Electrical Engineering and Computer Science, University of Maribor, 2000 Maribor, Slovenia)

Abstract

The paper describes an event-triggered nonlinear feedback controller design. Event triggering is a real-time controller implementation technique which reduces embedded system utilization and relaxes task scheduling of the real-time system. In contrast to classic time implementation techniques, the event-triggered execution is validated regarding the introduced triggering policy. The triggering rule is a boundary, where the last task value is preserved until the rule is violated. In the given paper, two different event-triggered strategies are designed for the class of dynamic systems with integral behavior. Both methods are based on sliding mode controller design, where the triggering rule of the first design involves only a partial state vector, which is a direct consequence of the triggering rule derivation throughout the Lyapunov stability analysis. In the second approach, the sliding mode controller is designed upon prior stabilized systems with the additional term, which enables derivation of the triggering rule based on the whole state vector. The second approach offers better closed-loop performance and higher relaxation of the system utilization. The selection of triggering boundary is related closely to the derived minimal inter-event time, which impacts the computational burden of the real-time system and closed-loop performance directly. The derived controllers are compared with the classic sample and hold implementation techniques. The real-time results are presented, and system performances are confirmed regarding embedded system task relaxation, lowering the computational intensity and preserving closed-loop dynamics.

Suggested Citation

  • Andrej Sarjaš & Dušan Gleich, 2022. "Toward Embedded System Resources Relaxation Based on the Event-Triggered Feedback Control Approach," Mathematics, MDPI, vol. 10(4), pages 1-18, February.
    • Handle: RePEc:gam:jmathe:v:10:y:2022:i:4:p:550-:d:746464
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    References listed on IDEAS

    as
    1. Luis Arturo Soriano & José de Jesús Rubio & Eduardo Orozco & Daniel Andres Cordova & Genaro Ochoa & Ricardo Balcazar & David Ricardo Cruz & Jesus Alberto Meda-Campaña & Alejandro Zacarias & Guadalupe , 2021. "Optimization of Sliding Mode Control to Save Energy in a SCARA Robot," Mathematics, MDPI, vol. 9(24), pages 1-16, December.
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    Cited by:

    1. Tao Wang & Yingchun Zhang & Hongchen Jiao, 2022. "Event-Triggered Attitude-Orbit Coupled Fault-Tolerant Control for Multi-Spacecraft Formation," Mathematics, MDPI, vol. 10(12), pages 1-20, June.
    2. Andrej Sarjaš & Dušan Gleich, 2023. "Event-Triggered Second-Order Sliding Mode Controller Design and Implementation," Mathematics, MDPI, vol. 11(20), pages 1-16, October.

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