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.
Evaluating serial ZigBee devices for application in wireless networked control systems
2012-12-01
Conference paper
Electronic Resource
English
Wireless networked control systems , ZigBee device , PID controllers , Industrial electronics , Research topics , Networked controls , Interoperability , Wireless networks , Zigbee , Delay control systems , Motor control system , Networked control systems , Control performance , Wireless sensor , Performance metrics , Recent trends , Wireless control , Discretizations , Wired and wireless , Sensors
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