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Pre-processing of geo-spatial sensor data

  • US 9,665,631 B2
  • Filed: 03/19/2014
  • Issued: 05/30/2017
  • Est. Priority Date: 03/19/2014
  • Status: Active Grant
First Claim
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1. A computer-implemented method comprising:

  • receiving data derived from a plurality of geo-spatial sensors that respectively generate information characterizing a plurality of sources within a zone of interest, the received data comprising a series of time-stamped frames for each of the plurality of geo-spatial sensors, at least one of the plurality of sources having two or more associated sensors of the plurality of geo-spatial sensors;

    sorting and processing, for each of the plurality of geo-spatial sensors on a sensor-by-sensor basis, the received data using a sliding window, wherein the sorting and processing comprises filtering the series of time-stamped frames based on timestamps associated with each frame, the filtering of the series of time-stamped frames comprising;

    recording, for each of the plurality of geo-spatial sensors, a system time and a time of a first recorded time-stamped frame,determining an expected timestamp for arriving frames, anddiscarding any arriving frames having a timestamp outside a pre-defined time window relative to the expected timestamp;

    interpolating a missing timestamp based on a linear interpolation between a plurality of other timestamps;

    correlating the sorted and processed data for each of the plurality of sources; and

    writing the correlated data into a data storage application.

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