Overview
Overview
Smart Greenhouse is a complete climate-control platform for commercial glasshouses and polytunnels — sensors, a PID + rules controller and cloud / mobile dashboards that coordinate roof and side vents, circulation and exhaust fans, heaters, irrigation valves, CO₂ dosing and supplemental LED grow lighting against a per-crop climate recipe.
Built for tomato, cucumber, lettuce, strawberry, cannabis and propagator operators who want to lock in a precise Daily Light Integral (DLI), Vapour Pressure Deficit (VPD) and CO₂ profile, hit harvest dates predictably, cut energy use 20–35%, and stop chasing alarms in person at 2 a.m.
- One controller, every actuator — vents, fans, heat, irrigation, lights, CO₂, shade screens
- Crop-recipe based — DLI / VPD / EC / temperature targets per growth stage, applied automatically
- Offline-safe — local controller runs the house even if the internet drops
- Energy & yield savings — typical 20–35% energy cut, 8–18% yield uplift vs manual setpoints
How It Works
The diagram above shows the four layers of a Smart Greenhouse deployment. Hover any module to see the live telemetry it produces.
- The Greenhouse — sensors (air T/RH, leaf temp, PAR, CO₂, soil moisture, irradiance) and actuators (vents, fans, heaters, drippers, grow lights, CO₂ valves) physically wired into the structure.
- Climate Algorithm — a local PID + rules engine reads the sensors and drives every actuator against the current crop recipe (e.g. tomato Stage-3: 24 °C day / 18 °C night, VPD 0.9 kPa, DLI 22 mol, CO₂ 900 ppm).
- Cloud Dashboard — every house across every site rolls up with 24h trends, DLI accumulation, yield vs baseline, energy use, alarms; supports multi-tenant for operators with several growers.
- Grower & Alerts — push and SMS for the head grower, role-based view for owner / agronomist / maintenance, one-tap manual override and recipe-step changes.
A continuous feedback loop pushes recipe edits, grower overrides, model retrainings and firmware back to the controller — visible as the purple stream along the bottom of the diagram.
Features
- Crop recipes — pre-loaded for tomato, cucumber, lettuce, strawberry, basil, cannabis, propagation
- VPD & DLI engines — climate driven by plant physiology, not just air temperature
- Multi-zone — independent setpoints per bay, row, or growth-stage table
- CO₂ enrichment — closed-loop dosing tied to vent position so CO₂ isn't wasted
- Light recipe scheduler — sunrise-tracking, far-red end-of-day pulse, photoperiod control
- Energy & cost telemetry — kWh per crop cycle, gas burn per growing degree-day
- Offline-safe edge runtime — controller keeps running for days without cloud
- Open integrations — Priva, Hoogendoorn, Argus, Autogrow, generic Modbus / BACnet / 0–10 V actuators
Use Cases
- Hydroponic vegetables — tomato, cucumber, pepper, lettuce, strawberry
- Propagators & nurseries — high-precision germination and finishing rooms
- Cannabis / medicinal crops — vegetative and flowering rooms, GMP-grade data trail
- Research glasshouses — university and seed-company trial blocks with per-bay treatment
- Garden centres & ornamentals — energy-cost reduction, late-night unmanned operation
- Cold-climate winter production — vent / heat / supplemental light coordination for low-sun months
Specifications
- Sensors: air T (±0.2 °C), RH (±2%), leaf T IR, PAR (0–2500 µmol), CO₂ NDIR (0–5000 ppm ±50), soil moisture, EC, pH, outdoor pyranometer + wind
- Outputs: 0–10 V analogue, relay (3 A / 16 A), Modbus RTU/TCP, BACnet IP, MQTT
- Zones: up to 32 climate zones per controller, 8 controllers per gateway
- Loop rate: 1 s control loop, 15 s logging default
- Connectivity: Ethernet (primary), Wi-Fi, 4G LTE backup
- Recipes: 5 default crops, unlimited custom; multi-stage with day/night curves
- Power: 24 VDC controller, 90–240 VAC PSU, optional UPS
- Certifications: CE, UL, IP65 outdoor sensor pods, GMP-ready audit log
Product information
| Product name | Smart Greenhouse |
|---|---|
| Category | Agriculture IoT |
| Type | IoT Based Product |
| Procurement | Contact / Negotiable |
Customisation options
- Crop recipe — pre-loaded tomato / cucumber / lettuce / strawberry / basil / cannabis / propagation, or fully custom multi-stage recipe
- Sensor pack — basic (T/RH/PAR), standard (+ CO₂ + soil), full plant-science (+ leaf temp IR, EC/pH, photosynthesis chamber)
- Actuator outputs — choose count of vent motors, fan stages, heater stages, irrigation zones, CO₂ valves, light banks (0–10 V or Modbus)
- Zone count — single bay, multi-bay (up to 32 climate zones), or multi-house with central orchestration
- Grow-light driver — relay only, dimmable 0–10 V, DALI, or full Modbus spectrum control (Heliospectra, Fluence, Valoya)
- Connectivity — Ethernet, Wi-Fi, 4G LTE backup; private VPN option for compliance environments
- Integration with existing climate computer — Priva, Hoogendoorn, Argus, Autogrow read/write bridge
- Service tier — DIY install, full commissioning + crop recipe tuning, or managed agronomy-as-a-service
Ordering & lead time
Standard lead time depends on current stock. For volume orders, please contact our team for a structured quote including BOQ, freight, installation and warranty terms.
Support
Engineering support, installation guidance and warranty claims are handled by our customer success team. Reach us at support@sgtsystems.com or via the channels listed on our Contact page.