METHOD AND APPARATUS FOR MONITORING AN OPERATIONAL STATE OF A SYSTEM ON THE BASIS OF TELEMETRY DATA

摘要

A method and apparatus monitor an operational state of a telemetry data system, wherein the operational state is a nominal or a novel operation state. The telemetry data includes time series data of at least one parameter indicating the operational state. The method obtains sample interval data indicating a parameter time series data of the at least one parameter relating to a time interval duration; determines one or more characteristic quantities of the sample interval data, the characteristic quantities determined forms a sample set; obtains pre-stored sets of characteristic quantities at least one parameter and time intervals duration during nominal operation state; determines a probability sample set of characteristic quantities being outlier with respect to pre-stored sets of characteristic quantities; and if the probability exceeds a threshold, provides a message with the sample interval data and at least one system parameter or notifies no novel behaviors found.

主权项

1. A method for monitoring an operational state of a system on the basis of telemetry data, wherein the operational state is either a first state or a second state, the second state being a state different from the first state, and the telemetry data comprises time series data of at least one parameter of the system indicating the operational state of the system over time,
the method comprising: obtaining first interval data indicating time series data of a parameter of the at least one parameter of the system relating to a time interval of a predetermined duration; determining one or more characteristic quantities of the first interval data, the one or more characteristic quantities determined at this step forming a first set of characteristic quantities; obtaining a plurality of second sets of characteristic quantities, wherein the plurality of second sets of characteristic quantities relate to the parameter of the at least one parameter of the system and to a plurality of time intervals of the predetermined duration during which the system was in the first state; and determining a probability of the first set of characteristic quantities being an outlier with respect to the plurality of second sets of characteristic quantities.