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Sensors 2012, 12(12), 16591-16613; doi:10.3390/s121216591
Article

Network Adaptive Deadband: NCS Data Flow Control for Shared Networks

1,* , 2
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 and 3
Received: 6 October 2012; in revised form: 23 November 2012 / Accepted: 23 November 2012 / Published: 3 December 2012
(This article belongs to the Section Physical Sensors)
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Abstract: This paper proposes a new middleware solution called Network Adaptive Deadband (NAD) for long time operation of Networked Control Systems (NCS) through the Internet or any shared network based on IP technology. The proposed middleware takes into account the network status and the NCS status, to improve the global system performance and to share more effectively the network by several NCS and sensor/actuator data flows. Relationship between network status and NCS status is solved with a TCP-friendly transport flow control protocol and the deadband concept, relating deadband value and transmission throughput. This creates a deadband-based flow control solution. Simulation and experiments in shared networks show that the implemented network adaptive deadband has better performance than an optimal constant deadband solution in the same circumstances.
Keywords: deadband control; NCS; tele-operation; network protocols; sensors/actuators deadband control; NCS; tele-operation; network protocols; sensors/actuators
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Díaz-Cacho, M.; Delgado, E.; Prieto, J.A.G.; López, J. Network Adaptive Deadband: NCS Data Flow Control for Shared Networks. Sensors 2012, 12, 16591-16613.

AMA Style

Díaz-Cacho M, Delgado E, Prieto JAG, López J. Network Adaptive Deadband: NCS Data Flow Control for Shared Networks. Sensors. 2012; 12(12):16591-16613.

Chicago/Turabian Style

Díaz-Cacho, Miguel; Delgado, Emma; Prieto, José A.G.; López, Joaquín. 2012. "Network Adaptive Deadband: NCS Data Flow Control for Shared Networks." Sensors 12, no. 12: 16591-16613.


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