Technology — Sensors, Platforms & Data Pipeline

Payloads

Three sensors, one flight

Multispectral camera: Captures red, red-edge and near-infrared bands alongside RGB, the core input for NDVI and NDRE calculation.
Thermal sensor: Reads canopy surface temperature, used to flag water-stressed blocks ahead of visible wilting.
RGB camera: High-resolution true-colour capture, registered to the same grid as the index maps for ground-truthing.
Spray module: Variable-rate nozzle array on the spraying platform, driven directly by the prescription file generated from survey data.

Pipeline

From raw bands to a map you can act on

Capture

Overlapping multispectral, thermal and RGB frames collected across the flight grid.

Correct

Radiometric calibration against the reference panel, removing lighting and sensor drift from the readings.

Stitch

Frames aligned into a single georeferenced orthomosaic of the plot.

Index

NDVI, NDRE and thermal delta calculated per pixel, then aggregated to block level.

Flag & export

Blocks below threshold are listed with coordinates, and the map is exported as a report, GeoTIFF, or spray prescription.

Platforms

Matched to the plot, not one drone for everything

Survey and spray fleets are sized to the crop and terrain — a compact multirotor for tight plantation rows and uneven terrain, and a heavier-lift platform for open row-crop acreage where coverage speed matters more than manoeuvrability.

Survey

Compact multirotor mapping platform

Manoeuvres tight plantation rows and uneven canopy height; carries the multispectral, thermal and RGB payload.

Spray

Heavy-lift spraying platform

Variable-rate tank and nozzle array, flown from the same prescription file the survey produces.

See the survey-then-spray service Operating practice & compliance

The sensors and pipeline behind the map.