skills · teach

Survey & capture

Measure and cite the basis — DemTools. DGCA drone papers are official, not ours.

Study notes. Not a certificate. Not a licence. Not NEBOSH, PESO, ISEE, or IDE. We never design the charge, spacing, or the cut. Site hours and statutory papers have no video substitute.

1. Basic surveying — levels, total station, coordinate systems, control.

   Control first. A floating tape is an assumed length. Write the instrument.

   8 h · teach

2. Coordinate reference systems: WGS84, UTM, local grids, and why mixing them silently destroys accuracy.

   Name the CRS. Mixing a phone GPS with a local grid is how a wall moves two metres on paper.

   6 h · teach

3. DGCA Remote Pilot Certificate (India) — 40 h course, 18+, through a DGCA-approved RPTO. Legally required for commercial flying.

   The certificate is theirs. We do not issue it.

   12 h · teach

4. Flight planning for survey: overlap, GSD, altitude, patterns.

   Overlap, GSD, altitude — a pretty mosaic is not a measure until control is written.

   6 h · teach

5. Ground control points and accuracy assessment; RTK/PPK.

   GCP or RTK/PPK stated. Accuracy claimed without a check is assumed.

   6 h · teach

6. Photogrammetry processing — Pix4D / DroneDeploy / OpenDroneMap / RealityCapture.

   Processing is not a take-off. Export a cited volume or do not send a number.

   8 h · teach

7. LiDAR basics and when it beats photogrammetry (vegetation, interiors, verticals).

   Processing is not a take-off. Export a cited volume or do not send a number.

   6 h · teach

8. Volume and quantity take-off from a point cloud — this is the estimating superpower.

   Every tonne still has a source. DemTools on the plot; cloud in the office.

   10 h · teach

9. Before/after capture for debris measurement and dispute defence.

   Capture the day it changes. Dispute defence is a dated pair of captures.

   8 h · teach