Title :
Wireless event-triggered controller for a 3D tower crane lab process
Author :
Altaf, Faisal ; Araújo, José ; Hernandez, Aitor ; Sandberg, Henrik ; Johansson, Karl Henrik
Author_Institution :
ACCESS Linnaeus Center, R. Inst. of Technol., Stockholm, Sweden
Abstract :
This paper studies the design and real-time implementation of an event-triggered controller for a nonlinear 3D tower crane where the communication between the controller and the actuators is performed over a low-power wireless network. A flexible Event-Generation Circuit (EGC) is proposed in order to implement event-driven controllers for Networked Control Systems. Furthermore, a detailed experimental analysis on the performance of the event-triggered controller and the influence of packet losses on the transmitted actuation messages are presented. The results show that the event-triggered controllers in networked control systems are able to maintain the same level of performance as compared to periodic controllers, while increasing the sensors/actuators lifetime by reducing network bandwidth utilization.
Keywords :
cranes; networked control systems; nonlinear control systems; periodic control; radio networks; telecontrol; 3D tower crane lab process; event driven controller; flexible event generation circuit; low power wireless network; network bandwidth utilization reduction; networked control system; nonlinear 3D tower crane; periodic controllers; wireless event triggered controller; Cranes; Mathematical model; Poles and towers; Three dimensional displays; Wireless networks; Wireless sensor networks;
Conference_Titel :
Control & Automation (MED), 2011 19th Mediterranean Conference on
Conference_Location :
Corfu
Print_ISBN :
978-1-4577-0124-5
DOI :
10.1109/MED.2011.5983179