The application of the personal computer in the area of real-time process control
is investigated. Background information is provided regarding factory automation and
process control. The current use of the PC in the factory for data acquisition is
presented along with an explanation of the advantages and disadvantages associated
with extending the use of the PC to real-time process control. The use of interrupt-driven
and polled I/O to obtain real-time response is investigated and contrasted with
the use of a real-time operating system. A unique compilation of information provides
guidelines for selecting an implementation method for real-time control. Experimental
work is performed to evaluate the access time and latency periods for the hard drive,
video monitor, and I/O devices operating in a DOS environment. The execution speeds
of C and assembly language programs are investigated. A method to estimate the
performance of a real-time control system using polled or interrupt-driven I/O is
developed. / Graduation date: 1997
| Identifer | oai:union.ndltd.org:ORGSU/oai:ir.library.oregonstate.edu:1957/34490 |
| Date | 06 December 1996 |
| Creators | Stanford, Clayton R. |
| Contributors | Herzog, James H. |
| Source Sets | Oregon State University |
| Language | en_US |
| Detected Language | English |
| Type | Thesis/Dissertation |
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