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Methods and systems for data analytics

  • US 9,418,493 B1
  • Filed: 04/30/2015
  • Issued: 08/16/2016
  • Est. Priority Date: 04/30/2015
  • Status: Active Grant
First Claim
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1. A method implemented by a computing device for data stream analytics comprising:

  • controlling a sensor to acquire sensor data regarding operating conditions of a vehicle;

    receiving a stream of the sensor data;

    processing, by the computing device, a first data set of the stream of the sensor data in a time domain and in a frequency domain;

    processing, by the computing device, a second data set of the stream of the sensor data in the time domain and in the frequency domain, wherein the first data set and the second data set are adjacent data sets of the stream of the sensor data;

    identifying, by the computing device, one or more of differences within first processing results from processing the first data set, differences within second processing results from processing the second data set, or differences between the first processing results and the second processing results;

    determining, by the computing device, that at least one difference in the identified differences is greater than or equal to one or more predefined thresholds;

    based on determining the at least one difference in the identified differences being greater than or equal to the one or more predefined thresholds, recording, by the computing device, one or more processing results corresponding to the identified at least one difference in a data index map (DIM); and

    analyzing contents of the DIM to evaluate operating conditions of the vehicle.

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