公开(公告)号：US20210406742A1

公开(公告)日：2021-12-30

申请号：US16912626

申请日：2020-06-25

Applicant: Bell Textron Inc.

Inventor： Matthew Curtis LEDBETTER ,  Silvio Mario LOPEZ ,  Drew Franklin WALLER

IPC: G06N7/00 ,  G06F17/18 ,  G06K9/62

Abstract: In an embodiment, a method includes acquiring a current condition indicator of a condition indicator set associated with an operating condition of a machine, the condition indicator set indicating sensor readings associated with an operating element of the machine under the operating condition. The method also includes determining, by a data server, a relative trend significance over a trend window of the condition indicator set based, at least in part, on an evaluation of the trend window in relation to a historical window of the condition indicator set. The method also includes determining, by the data server, whether trend criteria associated with the operating element is satisfied, where the trend criteria may include criteria related to the relative trend significance. The method also includes executing, by the data server, an alerting process in response to the determining that the trend criteria is satisfied.

公开(公告)号：US20210055717A1

公开(公告)日：2021-02-25

申请号：US16547182

申请日：2019-08-21

Applicant: Bell Textron Inc.

Inventor： Brian Edward TUCKER ,  Matthew Curtis LEDBETTER

IPC: G05B23/02 ,  B64D45/00 ,  B64F5/60 ,  G07C5/00 ,  G07C5/08

Abstract: A method includes acquiring a current condition indicator of a condition indicator set associated with an operating condition of a vehicle, the condition indicator set indicating sensor readings associated with an operating element of the vehicle under the operating condition, determining, by a data server, a volatility over a window of the condition indicator set based, at least in part, on differences between adjacent data points in the window, wherein the window includes the current condition indicator, determining, by the data server, a movement over the window of the condition indicator set based, at least in part, on a difference between two selected data points in the window, determining a volatility-based movement significance over the window of the condition indicator set based, at least in part, on a ratio of the movement to the volatility, determining, by the data server, whether a trend associated with the operating element is indicated based, at least in part, on the volatility-based movement significance, and generating, by the data server, an alert signal in response to the determining that the trend is indicated.