Implementasi Sistem Monitoring IoT untuk Suhu dan Kelembapan Ruang Server BMKG Menggunakan DHT21

Abstract

Ruang Server BMKG memerlukan kestabilan suhu 17–27?°C dan kelembapan 40–60?% RH untuk menghindari kerusakan perangkat dan gangguan operasional. Penelitian ini merancang sistem berbasis IoT menggunakan ESP32, DHT21, dan LoRa dengan node di ruang server dan gateway di NOC, dilengkapi tampilan real-time, alarm suara, dan notifikasi email. Metode penelitian meliputi identifikasi masalah, analisis kebutuhan, perancangan, implementasi, pengujian akurasi sensor, serta evaluasi keandalan notifikasi, dengan analisis komparatif dan analaisis regresi linier berdasarkan data hasil pengujian langsung. Hasil pengujian menunjukkan akurasi sensor suhu 99,33?% dan kelembapan 87,36?%, serta hubungan linear negatif kuat antara suhu dan kelembapan R² = 0,9674, b = -2,8821, menandakan suhu relatif stabil meski kelembapan bervariasi. Sistem berhasil mendeteksi penyimpangan dan mengirim notifikasi real-time. Sistem ini mempercepat NOC menindaklanjuti kondisi ekstrem tanpa harus memantau dashboard secara terus-menerus, sehingga meningkatkan keandalan pemantauan ruang server.

The BMKG Server Room requires stable temperature (17–27?°C) and humidity (40–60?% RH) to prevent hardware damage and operational disruptions. The research methods include problem identification, requirement analysis, system design, implementation, sensor accuracy testing, and notification reliability evaluation. This study designs an IoT-based system using ESP32, DHT21, and LoRa, with a node in the server room and a gateway in the NOC, featuring real-time display, audible alarm, and automatic email notifications. Test results show temperature accuracy of 99.33?% and humidity accuracy of 87.36?%, with a strong negative linear relationship between temperature and humidity R² = 0.9674, b = -2.8821, indicating relatively stable temperature despite humidity variations. The system successfully detected deviations and delivered real-time notifications. Integrated automatic alarms and email notifications allow NOC personnel to promptly respond to extreme conditions without continuous dashboard monitoring, enhancing server room monitoring reliability.