Development Of An Iot And Fuzzy Logic Based Early Warning System Prototype For Toxic Gas Monitoring In Kawah Timbang, Dieng
DOI:
https://doi.org/10.32699/cathasaintifica.v4i1.10334Keywords:
Internet of Things, Fuzzy Logic, Early Warning System, Toxic Gas, Volcanic Disaster MitigationAbstract
Volcanic gas emissions in the Dieng Plateau pose serious hazards, particularly at Kawah Timbang, where high concentrations of carbon dioxide (CO₂), hydrogen sulfide (H₂S), and sulfur dioxide (SO₂) threaten surrounding communities. Recorded CO₂ levels have reached 10.000 ppm, far exceeding the safe threshold and highlighting the urgency of an automatic early warning system that can deliver real-time alerts to minimize evacuation delays and potential fatalities. This study aims to design and evaluate an early warning system prototype based on the Internet of Things (IoT) and fuzzy logic for CO₂ monitoring at Kawah Timbang. The prototype uses an ESP32 microcontroller, MQ-135 sensor, DHT20 sensor, OLED display, buzzer, and IoT applications (Blynk and Telegram) to provide both local and remote alerts. Results show that the prototype effectively detects CO₂ in real time, classifies hazard levels into safe, alert, and hazardous categories, and transmits notifications with a response time of less than 10 seconds. The integration of IoT and fuzzy logic offers a practical and adaptive solution for volcanic disaster mitigation. Further development should include multi-gas detection, field deployment, and the use of machine learning to enhance accuracy and system resilience.
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Copyright (c) 2026 Kunti Najma Jalia, Muhammad Assegaf, Sihabuddin Rifqi, Miftahul Fuadi, Fi Amalia Utami, Nahar Mardiyantoro

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