Publicação: Evaluating serial ZigBee devices for application in wireless networked control systems
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Networked control systems (NCS) are distributed control system where the sensors, actuators and controllers are physically separated and connected through communication networks. NCS represent the evolution of networked control architectures providing greater modularity and control decentralization, ease maintenance and diagnosis and lower cost of implementation. A recent trend in this research topic is the development of NCS using wireless networks (WNCS) enabling interoperability between existing wired and wireless systems. This paper evaluates a serial RS-232 ZigBee device as a wireless sensor link in NCS. In order to support this investigation, relevant performance metrics for wireless control applications such as jitter, time delay and messages lost are highlighted and calculated to evaluate the device capabilities. In addition the control performance of an implemented motor control system using the device is analyzed. Experimental results led to the conclusion that serial RS-232 ZigBee devices can be used to implement WNCS and the use of this device delay information in the PID controller discretization can improve the control performance of the system. © 2012 IEEE.
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Control performance, Discretizations, Motor control system, Networked controls, Performance metrics, PID controllers, Recent trends, Research topics, Wired and wireless, Wireless control, Wireless networked control systems, Wireless sensor, ZigBee device, Industrial electronics, Interoperability, Networked control systems, Sensors, Wireless networks, Zigbee, Delay control systems
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Inglês
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IECON Proceedings (Industrial Electronics Conference), p. 3176-3181.
