Safe Reinforcement Learning for climate control
DQN-based supervisory control and physical deployment.
Related research & publications →Toba, Indonesia · Indoor farming research
Exploring safe reinforcement learning, 3D microclimate mapping, VPD regulation, and energy-aware control in an instrumented vertical farm.
DQN-based supervisory control and physical deployment.
Related research & publications →Sparse sensors, Kriging, and residual correction.
Related research & publications →IoT, edge control, VPD, and operational evidence.
Related research & publications →
Weather & microclimate
BMKG forecasts for Balige I, Toba Regency, alongside a demonstration of container microclimate. Two distinct sources, with explicit data provenance.
BMKG · Official forecast
Three-hour weather forecasts; not live measurements or long-term climate statistics. Balige I does not represent all of Toba.
Loading BMKG forecast…
All values and curves below are mathematically generated for illustration. They are not sensor readings, experimental results, or BMKG data. Simulated lighting: 06:00–22:00 WIB. Light is expressed in lux, not PPFD.
Air temperature
— °C
Simulated
24 h range: —
Relative humidity
— % RH
Simulated
24 h range: —
Light intensity
— lux
Simulated
24 h range: —
CO₂ concentration
— ppm
Simulated
24 h range: —
Curves: past 24 hours, left → right; each metric uses its own scale. Simulation updates every minute. Simulation time: —
Research stories

Spatial microclimate
Across 544 synchronized observations, average temperature fell while spatial spread increased. Explore what this event reveals about evaluating cooling with multiple sensors.
Read the story →
Climate control
A 48.1-hour observation revealed nighttime humidity limitations. Read the VPD findings and their limits.
Read the story →
IoT · Edge · Cloud
How 27 sensor nodes, a Jetson Nano, and a local dashboard connect sensing, control, and remote monitoring.
Read the story →About
The platform combines hydroponic cultivation, artificial lighting, distributed temperature–humidity sensing, CO₂ monitoring, actuator telemetry, and energy measurement.
Our work focuses on evidence: where conditions differ, how quickly the system recovers, which nodes remain outside target, and whether control improvements justify their energy cost.
27 + 1
indoor and outdoor sensor nodes
10 ft
instrumented container
20–24°C
thermal evaluation band
Facility
Internal dimensions are approximately 2.34 × 2.82 × 2.39 m. Hydroponic racks line both sides of the aisle, with artificial lighting, a 1-PK split AC, humidification, nutrient management, and CO₂ enrichment.
Distributed temperature, humidity, light, CO₂, weather, and energy measurements.
Edge and cloud processing for synchronization, diagnostics, and control.
Time-series records and dashboards for traceable operational analysis.
Cooling, humidification, lighting, nutrients, and CO₂ under supervised control.
Documentation

Hydroponic racks, distributed nodes, and nutrient and actuation subsystems.

Pakchoi cultivated on multi-level gullies under artificial lighting.

Temperature, humidity, CO₂, lighting, actuator state, current, and power recorded during operation.
Articles & findings
28 Oktober 2026
Refleksi Kangabet tentang pemuda, integritas akademik, kemandirian ilmu pengetahuan, dan inovasi yang berdampak.
Read articleEquipment
ESP32, MQTT, Grafana, Jetson Nano, Cloudflare, microclimate sensors and hydroponic monitoring with honest equipment guidance.
Read articleServices & Training
Defined deliverables, pilot pricing, and documented speaking and training experience.
Read articleSpeaking · 2024
A retrospective on malware-stealer prevention and digital security awareness, with the original IT Del report.
Read articleGovernance · 2024
A retrospective on the November 2024 FGD covering governance, SIEM, and the NIST Cybersecurity Framework.
Read articleSpace & time
Kriging, IDW, RBF, ARIMA, and SARIMA: their roles, seasonal periods, and validation without data leakage.
Read articleAI & farming
A source-based overview of safe RL, digital twins, edge AI, and emerging research opportunities.
Read articleMonitoring
Connect sensor readings, actuator states, and operational diagnosis in one dashboard.
Read articleHaze & crops
Which crop stages need attention, what smoke changes, and how farmers can document risks without guessing harvest losses.
Read article27 nodes
Sensor data reaches a Jetson Nano for local decisions, while a local server and Cloudflare Tunnel make monitoring available online.
Read article4.6×
During one AC recovery event, the horizontal temperature gap reached 3.33°C, compared with 0.72°C vertically.
Read article5.03°C
Across 544 synchronized observations, average temperature fell while spatial temperature spread increased.
Read article48.16%
A 48.1-hour observation exposed nighttime humidity limitations that average temperature alone did not reveal.
Read articleResearch
Sparse-sensor interpolation, variogram sensitivity, residual correction, and spatial compliance.
Rule-based, PID, DQN, and safety-aware supervisory control for temperature and humidity.
Fault detection, controller recovery, hotspot persistence, and post-shutdown rebound.
Joint assessment of climate compliance, actuator power, switching, and recovery time.
Publications & community engagement
Explore publications in precision agriculture, sensor networks, automation, and system security, alongside community programmes with farmers and schools.
9
23
9
6
Collaborate with Tobafarm
Choose the path closest to your needs. Scope, facilities, timelines, and deliverables are discussed before work begins.
01 · For researchers
Discuss experimental questions, sensor data, microclimate methods, and control evaluation.
Discuss joint research →02 · For industry & government
Explore sensing, monitoring, microclimate audits, and control prototypes with measurable outcomes.
Explore pilot support →03 · For students & educators
Find teaching materials, explore supervision, or discuss focused technical training.
Explore learning resources →