Evaluasi Kesesuaian Pengukuran Sistem Monitoring Suhu Berbasis ESP32 dan Firebase pada Cold Storage Industri
DOI:
https://doi.org/10.33795/elkolind.v13i3.10375Keywords:
cold storage, DS18B20, ESP32, Firebase Realtime Database, Bland–Altman, Internet of Things.Abstract
Penelitian ini mengevaluasi kesesuaian pembacaan suhu pada prototipe monitoring berbasis Internet of Things (IoT) yang menggunakan sensor DS18B20, ESP32, dan Firebase Realtime Database pada cold storage industri. Evaluasi kuantitatif difokuskan pada data yang tersedia, yaitu 300 observasi suhu dan komparasi terhadap Eliwell ID Plus 974 menggunakan analisis Bland–Altman. Rata-rata suhu yang tercatat sebesar −17,260 °C dengan standar deviasi temporal 0,176 °C dan deviasi rata-rata 0,147 °C. Ringkasan tekstual melaporkan bias 0,05 °C dan standar deviasi selisih 0,18 °C, yang menghasilkan 95% limits of agreement sekitar −0,30 hingga 0,40 °C; namun legend grafik Bland–Altman menampilkan nilai LoA yang berbeda sehingga angka agreement perlu diverifikasi ulang dari raw paired data. Status kalibrasi dan ketidakpastian sistem Eliwell juga tidak tersedia. Fungsi pengiriman dan penyimpanan data ke Firebase teramati secara operasional, tetapi end-to-end latency, packet/data loss, uptime, dan recovery setelah gangguan jaringan atau daya belum diukur. Dengan bukti saat ini, prototipe diposisikan sebagai sistem monitoring tambahan dan pencatatan jarak jauh yang masih memerlukan validasi metrologi, telemetri, dan uji ketahanan jangka panjang sebelum deployment industri dapat dinyatakan.
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