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Rapid Field Check

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RESEPI User Manual
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Rapid Field Check #

The rapid field check provides an initial assessment of data quality and results. If any issues are identified during this check, adjust the flight parameters and record again.

  1. Remove USB Drive

    • Remove the USB drive from the RESEPI payload.

  2. Download Data

    • Transfer the flight folder from the USB to a computer’s local hard drive.

  3. Verify Data Quality

    a. Check RTK Trajectory

    • Open the rtk.pcmp file to view the raw trajectory (double-click to open).
      • If the RTK trajectory aligns with your flight path, the GNSS measurements are likely accurate. Note that the trajectory might lack data at the beginning and end and may appear to drift due to the lack of post-processing.

    b. Review Log File

    • Open the log.txt file (visible after unpacking the data in PCMasterPro) and ensure:
      • “GNSSTotalRecordingTime_s” matches the estimated recording time.
      • “IMUTotalRecordingTime_s” matches the estimated recording time.
      • “gapsInDataFiles” is false.

    c. Verify Dual Antenna Setup

    • If using a dual antenna setup, open the service log.
      • Check for messages every 5 seconds after the initial fix, such as “RCV: Secondary antenna status is COMPUTED,NARROW FLOAT”.
      • Ensure the message reads as “COMPUTED,SINGLE”, “COMPUTED,PSRDIFF”, “COMPUTED,NARROW FLOAT”, or “COMPUTED,NARROW INTEGER” throughout the data capture.

    d. Inspect Camera Folder

    • Open the “camera” folder (visible after unpacking the data in PCMasterPro if the unit has a camera).
      • Confirm that images are captured from takeoff to landing.
      • Ensure that the lens cover was removed, as indicated by images of the surveyed area rather than solid black images.