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FPS: Frost Protection System — open stack on GitHub

FPS: Frost Protection System — open stack on GitHub

A spring frost can wipe out a season in one night. FPS (Frost Protection System) protects orchards with irrigation and ice: the water anomaly and latent heat keep the flower at 0–2 °C, aiming for a ~100% RH microclimate. Software and hardware — Kotlin, Swift, C++, Python, LoRa, cloud — live on the public GitHub github.com/qtechdesign/qtech (MIT, master branch, FPS/ folder).

FPS — frost event and irrigation protection
FPS: spring frost protection with irrigation and an ice crust.

Product: qtech.hr/pages/sustav · Repo: github.com/qtechdesign/qtech

Qtech — Frost protection system page
Live HR page SUSTAV / ZAŠTITE OD MRAZA: sprinkler frost protection, parameters, FPS products.
FPS on GitHub — qtechdesign/qtech
Public repo qtechdesign/qtech: Kotlin 31.2% · Swift 28.9% · HTML 19.8% · C++ 15.1% · Python 3.4% · Java 1.6%.

Why FPS exists

Mission: sustainable food production via HW+SW — micro-location data + analytics. Vision: an open platform for efficient frost protection. Qtech builds critical production systems; FPS is one product in that line, not the studio’s only identity.

FPS architecture — sensors, LoRa, cloud, GDPR
Multisensor, private LoRa gateway, microclimate cloud — encrypted transit, GDPR-oriented.

How it works

  1. Physics — water anomaly / latent heat; ice crust keeps flowers at 0–2 °C; aim for a saturated microclimate (~100% RH) to save water.
  2. Multisensor node — solar, 12 V battery, 5 V; readings ~every 3 minutes; low power, sleep between measurements.
  3. Communication — private LoRa gateway up to ~10 km (subject to local regulations).
  4. Cloud — microclimate data (temperature, humidity, light, soil moisture); GDPR-oriented; encrypted transit.
  5. PIP 2.0 pulsator — ~5 m range at 1 bar; rainfall intensity ~1.2–2.0 mm/m²/h.
  6. Operations on qtech.hr/pages/sustav — sprinkler irrigation; start at least one hour before expected frost; emergency activation within five minutes; parameters: air temperature, humidity, dew point, wind, phenophase, forecast.
PIP 2.0 pulsator — orchard over-tree irrigation
PIP 2.0: ~5 m at 1 bar; ~1.2–2.0 mm/m²/h on the protected surface.

What the client gets

  • Frost protection system: sensors → LoRa → cloud → irrigation control
  • PIP 2.0 as part of the hydraulics (product on qtech.hr)
  • Public view of the stack on GitHub — Kotlin, Swift, HTML, C++, Python, Java (shares as above)
  • R&D with FSB Zagreb / Maslačak (Drvoplast partnership)
  • Summer orchard cooling and the FPS weather machine on the product page

Technology

The repository is public on GitHub under the MIT license (master, FPS/ folder). Mobile apps (Android/iOS), embedded software and the cloud part live in the same monorepo. License and contribution details are in the repo LICENSE and README — we claim nothing beyond what is published there.

Access and collaboration

Product: https://qtech.hr/pages/sustav
GitHub: https://github.com/qtechdesign/qtech

For an FPS quote or a related agro system: WhatsApp +385 98 421 340, info@qtech.hr or qtech.hr/pages/kontakt.

Ivan Jovic
QTECH DESIGN · qtech.hr

Sep 04, 2026