Patent ID: 11906958
Assignee: TATA CONSULTANCY SERVICES LIMITED
Field: Control (Instruments)
Classification: CPC G | IPC G

Claim 6:
7. A system, comprising:
a memory storing instructions;
one or more communication interfaces; and
one or more hardware processors coupled to the memory via the one or more communication interfaces, wherein the one or more hardware processors are configured by the instructions to:
obtain an input time series data corresponding to one or more sensors attached to at least one computing device;
compute a first order derivative over time using the obtained input time series data;
compute a gradient of change in value of the obtained input time series data of the one or more sensors over time based on the first order derivative;
derive an angle of change in direction based on the gradient of change in value of the one or more sensors over time, and converting the derived angle to a measurement unit;
quantize the input time series data into a plurality of bins based on the measurement unit;
obtain a weighted finite state transducers diagram (WFSTD) based on a domain knowledge;
convert the WFSTD into a specific pattern;
determine a number of occurrences of the specific pattern in one or more bins of the plurality of bins within a specific time range; and
detect one or more anomalies based on the number of occurrences of the specific pattern within the specific time range.