Analysis of Networked Control of Speed of DC Motor using Neural NetworkJournal: International Journal of Science and Research (IJSR) (Vol.2, No. 1)
Publication Date: 2013-01-05
Authors : Yogendra Narayan; Sunil Kumar;
Page : 329-332
Keywords : Network; communicate; control; challenges; signal; design;
In this paper we explain about the Networked control systems (NCS). NCS are distributed computing and control systems where the sensors, actuators and controllers that communicate over a shared medium. The distributed nature of NCS and issues related to the shared communication medium pose significant challenges for control design, as the control system no longer follows the rules of classical control theory. The main problems that are not well covered by the traditional control theory are varying time delays and packet losses. The change of communication architecture introduces different forms of time delay uncertainty in the closed loop system dynamics. These time delays come from the time sharing of the communication medium as well as the computation time required for physical signal coding and communication processing. Moreover, the time delays in a control application can degrade a systems performance and even cause system instability.
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