Agriculture · Frontier
Greenhouse Canopy Water-Stress Mapping
Shows which greenhouse benches are thirsty before any leaf wilts.
Plausible physics, early work — shown honestly as an experiment.
How it works
Most of a healthy leaf is water, and water is what the signal feels most. As plants dry out, the signal passes through the canopy more easily, bench by bench. Radar has measured plant water this way from satellites for decades — this brings the same physics inside the greenhouse.
In the physics: Leaf and stem water content dominates vegetation permittivity (well-established in radar remote sensing); as canopy relative water content drops, eps_r and the volume-scattering signature fall measurably, changing reflected amplitude and effective path length through the canopy.
See it work
This is real pipeline output for Agriculture, replayed. The exact reading depends on your room.
Go deeper
How the field becomes an answer
How we prove it
Own-hardware: ESP32 grid above/below benches vs gravimetric leaf-water-content sampling and stomatal-conductance porometer across an irrigation cycle; use ESP32-wall/CIR benchmarks to validate through-medium eps_r recovery.
Who it is for
'CanopyScan' — zone-level irrigation intelligence for high-value greenhouse growers; cuts water use and prevents silent yield loss.
The matching solution
Complete first-room estimateBarn Activity Node3 nodes · ~$130 parts · 90 min Request kit, subscribe, or set up →Compatible DIY hardware options
60 min · intermediate
120 min · advanced