IoT net house for leafy greens

Clean greens all year, sensor-driven irrigation and misting, a self-writing crop log

irrigation water (target): −30%; irrigation water (target)
crops per year: 6–8; crops per year
log entries automatic: ≥70%; log entries automatic

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Ideal for

Farms and co-ops growing greens on 500 m²+
Suppliers to supermarkets and canteens

Problems solved

Pests and heavy rain damage crops
Irrigation by guesswork wastes water and labour
Hard to prove produce is clean when selling wholesale

System details

Four layers from field devices to the phone app.

System

Devices
- 4-in-1 soil sensors
- Micro-climate station
- Valves, pump, misting
- 4K cameras
Edge (on the farm)
- LoRaWAN gateway runs rules offline
Cloud platform
- Crop log, disease forecasting, alerts
Apps
- NG Farm app, NG Assistant, Zalo

Packages and device list

Quantities scale with the size you choose. Any item can be adjusted in the formal quote.

Size:

Device list
Item	Quantity	Unit price	Total
Galvanised steel net house	1,000 m²	185,000 ₫	185,000,000 ₫
LoRaWAN + 4G edge gateway	1 unit	12,800,000 ₫	12,800,000 ₫
4-in-1 LoRaWAN soil sensor	3 unit	4,800,000 ₫	14,400,000 ₫
Greenhouse micro-climate station	1 unit	6,500,000 ₫	6,500,000 ₫
8-zone irrigation control cabinet	1 set	24,500,000 ₫	24,500,000 ₫
Ø34 irrigation solenoid valve	4 unit	850,000 ₫	3,400,000 ₫
Cooling mist system	10 set / 100 m²	3,200,000 ₫	32,000,000 ₫
Outdoor 4K IP camera	1 unit	3,900,000 ₫	3,900,000 ₫
NG Farm – farm managementRecurring/yr	12 farm / month	490,000 ₫	5,880,000 ₫
Installation (12%)			33,900,000 ₫
Survey and training			8,000,000 ₫
Upfront investment			324,400,000 ₫

Reference prices (VND), excl. VAT and installation. Final quote after a site survey.

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How it's built

1
Survey and design
Measure terrain, wind, water and power; choose span and height; draw irrigation zones.
2
Levelling and footings
Level the ground with 0.5–1% drainage slope; pour column footings per drawing.
3
Raise frame, stretch netting
Fit columns, trusses and bracing; stretch 50-mesh net with wiggle wire; fit the double door.
4
Irrigation and misting
Lay main and zone lines; install solenoid valves and nozzles; pressure-test.
5
Install IoT
Mount the gateway high, place soil probes in representative root zones, set the climate station at canopy height, wire the cabinet.
6
Configure and commission
Register devices, draw plots in NG Farm, set thresholds; run 7 days alongside manual irrigation.

Rollout plan

Week 1–2
Survey, final quote
Sign an NDA if needed, survey on site, finalise design.
Week 3–6
Build structure
Footings, frame, netting, irrigation.
Week 7
Install and configure IoT
Devices, software, automation rules.
Week 8
Training and handover
Operator training, acceptance against evaluation criteria.

Evaluation and acceptance

Criteria are written into the contract and measured with real data in NG Farm.

Metric	Target
Water vs. control plot	≥ 20% less
Grade-A share	≥ 85%
Share of log events recorded automatically	≥ 70%
Devices online	≥ 98% of the time

Sample modelSafe-vegetable co-op, 5,000 m² net house · −28% irrigation water · 7 crops/year · −12 giờ labour/week

FAQ

How is a net house different from a greenhouse?

A net house only uses insect netting – airy, cheaper, ideal for greens. A greenhouse uses PE film against rain with better climate control – for melons and tomatoes.

Does irrigation work without internet?

Yes. The gateway runs rules locally and buffers data, syncing when the connection returns.