Screening Data with an Expert System (PDAS)by Timothy K. Dahlstrand, STS Consultants Ltd, Northbrook, United States,
Abstract: The performance of a three-mile long penstock, constructed in an active landslide area in northern California, is monitored using 138 vibrating wire-strain gauges. Readings are taken daily, or more frequently during times of anticipated slope movement. Daily readings result in over 50,000 individual measurements per year. For overall project safety, it is necessary that the data be analyzed promptly. To assist with the data analysis, an expert system (Penstock Data Analysis System, PDAS) was developed to screen the data and to report findings via electronic mail to the user. This paper describes the hardware platforms and expert system shell used for development. PDAS is also described. Sample results and future improvements are presented.
Subject Headings: Expert systems | Data analysis | System analysis | Data processing | Data collection | Conduits | Vibration | Landslides | North America | California | United States
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