Method and system of determining alarm conditions

Details Method and system of determining alarm conditions Method and system of determining alarm conditions

2006-07-21

2010-12-21

Pham, Toan N (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S539260, C340S690000

Reexamination Certificate

active

07855640

ABSTRACT:
A method and system for determining alarm conditions of a slope under inspection whereby one or more dimensionless threat estimate values are calculated for one or more time periods. The maximum dimensionless threat estimate value calculated is selected and compared with a threshold alarm value. If the maximum dimensionless threat estimate value exceeds the threshold alarm value alarm conditions are set to indicate that the slope under inspection is exhibiting unsafe movement.

REFERENCES:
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McHugh et al., Evaluating Techniques for Monitoring Rock Falls and Slope Stability; 21st International Conference on Ground Control in Mining, pp. 335-343, Aug. 2002; <retrieved at http://www.cdc.gov
iosh/mining/pubs/pdfs/etfmr.pdf on Aug. 23, 2006> See for example sections—“Interfometric Radar”, “Photographic Image Analysis”, “Photographic Change Detection” and “Real-Time Monitoring”.
Kane et al.; “Instrumentation Practice for Slope Monitoring”; Preprint, 2000; <retrieved at http://www.kanegeotech.com/publications/html on Aug. 23, 2006> See for example the abstract.
Engineer manual EM 1110-2-2300. “General Design and Construction Considerations for Earth and Rock-fill Dams”; US Army Corps of Engineers, Jul. 30, 2001, <retrieved at http://www.usace.army.mil/publications/eng-manuals/em1110-2-2300 on Aug. 23, 2006> See for example Appendix C, E-3 and Fig. E-4.
McHugh; “Video Motion Detection for Real-Time Hazard Warnings in Surface Mines”; SME Annual Meeting, Denver, Colorado, Feb. 23-25, 2004; <retrieved at http://www.cdc.gov
iosh/mining/pubs/pdfs/vmdfr.pdf on Aug. 23, 2006> See for example the abstract.

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