Now showing items 21-32 of 32

  • Networked sliding mode control of the double integrator system using the event-driven self-triggered approach 

    Martí Colom, Pau; Velasco García, Manel; Camacho Santiago, Antonio; Martín Rull, Enric Xavier; Fuertes Armengol, José Mª (2011)
    Conference lecture
    Restricted access - publisher's policy
    Sliding mode control (SMC) methods rely on applying a high-frequency switching control. In networked control systems (NCS), high-frequency operations/transactions are not desirable because communication bandwidth consumption ...
  • One-step finite horizon boundary with varying control gain for event-driven networked control systems 

    Yépez Castillo, José Gregorio; Velasco García, Manel; Martí Colom, Pau; Martín, Enric Xavier; Fuertes Armengol, José Mª (2011)
    Conference report
    Open Access
    Recent research has shown that event-driven control requires less samples than time-driven (periodic) control. Consequently, event-driven control applied to Networked Control Systems (NCS) is a good approach for alleviating ...
  • Performance evaluation framework (PEF) for real-time embedded control systems 

    Lozoya Gámez, Rafael Camilo; Martí Colom, Pau; Velasco García, Manel; Fuertes Armengol, José Mª (2012-03-14)
    External research report
    Restricted access - author's decision
    This report presents a performance evaluation framework (PEF) designed to simulate and implement diverse theoretical results on control and resource performance optimization that has recently appeared in the literature
  • Performing flexible control on low cost microcontrollers using a minimal real-time kernel 

    Marau, Ricardo; Leite, Paulo; Velasco García, Manel; Martí Colom, Pau; Almeida, Luis; Pedreiras, Paulo; Fuertes Armengol, José Mª (2008-05-01)
    Article
    Open Access
    In recent years, approaches to control performance and resource optimization for embedded control systems have been receiving increased attention. Most of them focus on theory, whereas practical aspects are omitted. ...
  • Preliminary approach to Lyapunov sampling in CAN-based networked control systems 

    Yépez Castillo, José Gregorio; Lozoya, Camilo; Velasco García, Manel; Martí Colom, Pau; Fuertes Armengol, José Mª (IEEE Press. Institute of Electrical and Electronics Engineers, 2009)
    Conference report
    Open Access
    This paper presents a preliminary approach to networked control systems (NCS) that relies on an event-driven control method based on Lyapunov sampling. The goal is to study and develop approaches for NCS capable of offering ...
  • Qualitative analysis of a one-step finite-horizon boundary for event-driven controllers 

    Velasco García, Manel; Martí Colom, Pau; Yépez Castillo, José Gregorio; Ruiz Vegas, Francisco Javier; Fuertes Armengol, José Mª; Bini, Enrico (IEEE, 2011)
    Conference lecture
    Restricted access - publisher's policy
    Performance optimization for networked and embedded control systems refers to the ability of minimizing controllers’ resource utilization and/or improving control performance. Event-driven control has been shown to be ...
  • Schedulability Analysis for CAN-based Networked Control Systems with Dynamic Bandwidth Management 

    Velasco García, Manel; Martí Colom, Pau; Yépez Castillo, José Gregorio; Villa Millaruelo, Ricardo; Fuertes Armengol, José Mª (2009)
    Conference report
    Restricted access - publisher's policy
    This paper presents the schedulability analysis for control messages when networked control loops, built on top of the controller area network (CAN), are dynamically allocating bandwidth in terms of their controlled plants' ...
  • Self-triggered networked control systems: an experimental case study 

    Camacho Santiago, Antonio; Martí Colom, Pau; Velasco García, Manel; Lozoya, Camilo; Villa Millaruelo, Ricardo; Fuertes Armengol, José Mª; Griful Ponsati, Eulàlia (2010)
    Conference report
    Open Access
    A self-triggered controller is characterized, in general, by a non-periodic sequence of job activations. And each job execution, apart from performing sampling, control algorithm computation and actuation, calculates the ...
  • Simulation study of a remote wireless path tracking control with delay estimation for an autonomous guided vehicle 

    Lozoya, Camilo; Martí Colom, Pau; Velasco García, Manel; Fuertes Armengol, José Mª; Martín Rull, Enric Xavier (Springer, 2010-06-01)
    Article
    Restricted access - publisher's policy
    Industrial applications involving mobile systems can benefit from the use of wireless technology. However, wireless communication has not been widely accepted on the factory floor due to its difficulty in achieving the ...
  • Synchronizing sampling and actuation in the absence of global time in networked control systems 

    Martí Colom, Pau; Camacho Santiago, Antonio; Velasco García, Manel; Marès Martí, Pere; Fuertes Armengol, José Mª (IEEE Press. Institute of Electrical and Electronics Engineers, 2010)
    Conference report
    Restricted access - publisher's policy
    The successful operation of Networked Control Sys- tems (NCS) requires employing appropriate approaches for dealing with network induced time delays, i.e. time intervals elapsed from consecutive sampling and actua- tion ...
  • Toward new controller design paradigms in networked control systems 

    Torres Guerrero, Gina; Velasco García, Manel; Martí Colom, Pau; Fuertes Armengol, José Mª (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference report
    Restricted access - publisher's policy
    One of the main concerns in the design of networked control systems (NCS’s) is the inherent delays induced by the networking infrastructure. Rather than considering delays as a threat, delays may be considered as an ...
  • Track detection in railway sidings based on MEMS gyroscope sensors 

    Broquetas Ibars, Antoni; Comerón Tejero, Adolfo; Gelonch Bosch, Antonio José; Fuertes Armengol, José Mª; Castro Fernández, José Antonio; Felip, Damià; López Márquez, Miguel Ángel; Pulido, Jose Antonio (Multidisciplinary Digital Publishing Institute (MDPI), 2012-11-23)
    Article
    Open Access
    The paper presents a two-step technique for real-time track detection in single-track railway sidings using low-cost MEMS gyroscopes. The objective is to reliably know the path the train has taken in a switch, diverted or ...