Automation systems diagnostics and predictive failure detection

Details Automation systems diagnostics and predictive failure detection Automation systems diagnostics and predictive failure detection

2011-07-05

2011-07-05

Duda, Rina I (Department: 2837)

Electricity: motive power systems

Positional servo systems

C318S568160

Reexamination Certificate

active

07973508

ABSTRACT:
The present invention discloses a system and method for monitoring and diagnosing a robot mechanism. This requires adding intelligence to the diagnostics by parameters of physical robot arm linkages respecting component relative rotation or load transfer; storing rotation or translation relationship parameters characteristic of resonant frequencies between at least one mechanical link; receiving servo motor signals; digitizing and storing servo known normal data time histories; performing a time domain to frequency domain transformation on signal to identify components which are out-of band limit pre-sets.

REFERENCES:
patent: 4980625 (1990-12-01), Shimada
patent: 5155423 (1992-10-01), Karlen et al.
patent: 5528955 (1996-06-01), Hannaford et al.
patent: 7181294 (2007-02-01), Nihei et al.

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