Experimental Evaluation of Novel Master-Slave Configurations for Position Control under Random Network Delay and Variable Load for Teleoperation


Kuzu A., BOGOSYAN S., Gökaşan M. , Sabanovic A.

MATHEMATICAL PROBLEMS IN ENGINEERING, 2014 (SCI İndekslerine Giren Dergi) identifier identifier

  • Basım Tarihi: 2014
  • Doi Numarası: 10.1155/2014/608208
  • Dergi Adı: MATHEMATICAL PROBLEMS IN ENGINEERING

Özet

This paper proposes two novel master-slave configurations that provide improvements in both control and communication aspects of teleoperation systems to achieve an overall improved performance in position control. The proposed novel master-slave configurations integrate modular control and communication approaches, consisting of a delay regulator to address problems related to variable network delay common to such systems, and a model tracking control that runs on the slave side for the compensation of uncertainties and model mismatch on the slave side. One of the configurations uses a sliding mode observer and the other one uses a modified Smith predictor scheme on the master side to ensure position transparency between the master and slave, while reference tracking of the slave is ensured by a proportional-differentiator type controller in both configurations. Experiments conducted for the networked position control of a single-link arm under system uncertainties and randomly varying network delays demonstrate significant performance improvements with both configurations over the past literature.