Darrell R Elven

US Patent:

20100095215, Apr 15, 2010

Filed:

Oct 10, 2008

Appl. No.:

12/285682

Inventors:

Darrell Ray Elven - Eureka IL, US

Assignee:

Caterpillar Inc. - Peoria IL

International Classification:

G06F 15/173
G06F 3/048

US Classification:

715736, 709224

Abstract:

A computer-implemented method for detecting a repetitive activity pattern is disclosed. The method may include receiving activity data. The activity data may include timing information of a plurality of events. The method may also include determining a series of interval times associated with the plurality of events. The method may further include calculating a series of single standard deviations representing a running standard deviation of the series of interval times. The method may also include calculating a double standard deviation of the series of single standard deviations. The method may yet further include detecting a repetitive activity pattern if the double standard deviation is below a first pre-determined standard deviation threshold for a time period longer than a time threshold.