Using a communication network, such as an IP network, in the control loop is increasingly becoming the norm. This process of network-based control (NBC) has potential profound impact in areas such as: teleoperation, healthcare, military applications, and manufacturing. However, limitations arise as the communication network introduces delay that often degrades or destabilizes the control system. Four methods have been investigated that alleviate the IP network delays to provide stable real-time control. A performance measure is defined for a case study on a DC motor with a networked proportional-integral (PI) speed controller with various network delays and noise levels. Matlab simulation results show that NBC combined with these techniques can successfully maintain system stability, allowing control of real-time applications.
| Identifer | oai:union.ndltd.org:NCSU/oai:NCSU:etd-08042005-160943 |
| Date | 06 September 2005 |
| Creators | Richards, Tyler V |
| Contributors | Wenye Wang, James Brickley, Mo-Yuen Chow |
| Publisher | NCSU |
| Source Sets | North Carolina State University |
| Language | English |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://www.lib.ncsu.edu/theses/available/etd-08042005-160943/ |
| Rights | unrestricted, I hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to NC State University or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report. |
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