Healthcare · Strong theory
Contactless continuous vitals in step-down and med-surg beds
Tracks each patient's breathing rate around the clock — no wires, no wearables.
The physics is solid; our own validation is scheduled.
How it works
Every breath moves the chest a few millimetres, and that tiny movement gently shifts the WiFi waves crossing the bed. The system reads the rhythm of those shifts as a breathing rate, plus a faint trace of the heartbeat. The patient just sleeps; nothing touches them.
In the physics: Thoracic wall motion during breathing (0.1-0.5Hz, ~4-12mm) and cardiac-driven surface micromotion (0.8-2Hz, sub-mm) periodically modulate the multipath phase; the chest acts as a moving reflector producing a narrowband Doppler tone whose fundamental frequency equals respiration/heart rate.
See it work
This is real pipeline output for Healthcare, replayed. The exact reading depends on your room.
Go deeper
How the field becomes an answer
How we prove it
OPERAnet includes synchronized respiration ground truth for CSI-based rate estimation; validate RR MAE <2 bpm against its reference belt, then own-hardware ESP32 bedside trial vs. hospital pulse-ox/capnography for heart-proxy correlation.
Who it is for
'Zero-contact bed vitals' — sold to nursing informatics/CNIO for continuous monitoring on units that currently only get vitals q4h.
runtime Runs today in LatentField 2.0 as breathing_rate
The matching solution
Complete first-room estimatePatient Room Field Node3 nodes · ~$140 parts · 60 min Request kit, subscribe, or set up →Compatible DIY hardware options
15 min · beginner
120 min · advanced