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Dewline: AI irrigation scheduling

Dewline: AI irrigation scheduling

Water is life, but it is also a bill. When a project has 40 sprinkler and drip lines, building the schedule by hand gets tedious, and mistakes get expensive — flooded lawn or a dry rose.

Dewline 3D simulation, 41 lines
Dewline on a live project: 41 lines, isometric map, tank and zones.

Live example (41 lines): irrigation.qtech.hr/p/41961st0s0

Why I built Dewline

On sites I run projects from machines to pipework. Irrigation is always the last step, and often the worst: you get an Excel of valves, boxes, zones and flows, then spend hours staring at paper wondering which valves can run together without overshooting the main pipeline.

I decided to automate it. Dewline takes your spreadsheet, AI recognises the columns (including Croatian names like "Protok" or "Ventilsko okno"), and packs the lines into a schedule that never exceeds the set flow — while still cutting total watering time.

How it works

Dewline how it works, four-step animation
Four steps: import the table, AI column mapping, schedule optimisation, 3D simulation.
  1. Import — drop an Excel or CSV. Grok 4.5 maps the data: line, valve box, zone, type, flow (m³/h), duration (min).
  2. Parameters — main pipeline capacity, forecast location, water price, rainwater tank, well flow.
  3. Optimisation — the sum of simultaneously open valves never exceeds the main. Valves in the same box run in sequence. Rain shortens or skips watering.
  4. Simulation — isometric 3D model: tank, zones, pipes, animated sprinklers. PDF with the programming list for the controller.
1. Import spreadsheet
1. Import the table (Excel / CSV).
2. AI maps columns
2. AI maps Croatian and English columns.
3. Schedule optimisation
3. Packing the schedule inside main-line capacity.
4. 3D simulation
4. 3D simulation: tank, well, municipal supply, zones.

Import from the job site

Open Import in the app, drop the table or load the sample. The AI button maps columns; 41 lines from a real schedule come in without retyping.

Dewline import Excel/CSV
Import: Excel/CSV, AI analysis, sample table.
41 irrigation lines loaded
41 lines loaded from RASPORED NAVODNJAVANJA.

Simulation running

Play starts the day. Flow, tank and open lines change in real time. This clip is 41 lines, ~30 m³/h, seven lines open at 06:46.

Dewline simulation animation
Isometric simulation animation — playback through the morning cycle.
Playback: open lines in the simulation
7 lines open, 29.8 m³/h, tank + city, well first.

What you get

  • Shorter total watering time because the algorithm maximises parallel flow
  • Less manual work: AI reads your table
  • Water savings: rainwater and well take priority over the mains
  • Shareable links: every calculation has a URL for the client

Technology

Dewline lives at the network edge: Cloudflare Workers, D1 database, React frontend. No classic server. AI comes via xAI Grok 4.5.

Access

The app is free and public: https://irrigation.qtech.hr

If you have a complex irrigation system, upload your Excel and let Dewline build the schedule.

For a similar project: info@qtech.hr or WhatsApp: new project.

Ivan Jovic
QTECH DESIGN · qtech.hr

Aug 26, 2026