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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) Prosiding Semnastek Jurnal Informatika dan Teknik Elektro Terapan ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Journal of Electrical Technology UMY JMM (Jurnal Masyarakat Mandiri) ABDIMAS SILIWANGI Komputasi: Jurnal Ilmiah Ilmu Komputer dan Matematika Journal of Energy and Electrical Engineering (JEEE) JTEIN: Jurnal Teknik Elektro Indonesia E-JOINT (Electronica and Electrical Journal Of Innovation Technology) JITEL (Jurnal Ilmiah Telekomunikasi, Elektronika, dan Listrik Tenaga) Indonesian Journal of Community Dedication in Health (IJCDH) Jurnal Nasional Teknik Elektro dan Teknologi Informasi Journal FORTEI-JEERI Jurnal Litek : Jurnal Listrik Telekomunikasi Elektronika Jurnal Pengabdian Masyarakat Indonesia Gotong Royong Jurnal Pengabdian Siliwangi Indonesian Journal of Electronics, Electromedical Engineering, and Medical Informatics International Journal of Informatics and Computing Jurnal Teknokes SNTE Majalah Ilmiah Teknologi Elektro
Asep Andang, Asep
Department Of Electrical Engineering, Faculty Of Engineering, Univeristas Siliwangi, Tasikmalaya, Indonesia
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Low-Cost Level Deduplication: Design and Inter-Node Consistency Evaluation in Indoor Industrial Environments Purnomo, Agus; Andang, Asep; Badriah, Siti
Jurnal Teknokes Vol. 19 No. 1 (2026): March
Publisher : Jurusan Teknik Elektromedik, Politeknik Kesehatan Kemenkes Surabaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35882/jteknokes.v19i1.131

Abstract

Indoor air quality (IAQ) monitoring in industrial spaces is vital to protect workers from particulate matter exposure (PM₁, PM₂.₅, PM₁₀). Yet, many low-cost IoT systems prioritize outdoor, wide-area deployments and rarely confront two issues that matter indoors: inter-node measurement consistency when multiple identical sensors are co-located, and firmware-level transmission efficiency for Wi-Fi nodes operating under energy and bandwidth constraints. This work addresses both by presenting a reproducible, low-cost IAQ node built on an ESP32 (S3) and a PMS7003, coupled with a lightweight, on-device data-deduplication routine that suppresses redundant packets before they reach the network stack. The node integrates temperature–humidity sensing, RTC-GNSS for stable timestamps, local SD logging, a compact display for in-situ readouts, and standard Wi-Fi for infrastructure-friendly connectivity, enabling autonomous operation with optional MQTT back-end integration. We evaluate the design via a 24-hour co-location test of four identical nodes in a controlled indoor room (5-minute sampling). Minute-aligned time series are analyzed using one-way ANOVA to quantify inter-node agreement. Results indicate no statistically significant differences among nodes for PM₁, PM₂.₅, and PM₁₀ (p > 0.05), confirming internal consistency suitable for simultaneous multi-point monitoring. The deduplication routine reduces transmissions by ≈3.2% without information loss, modest per device, but compounding across dense deployments to lower network load and energy use. Together, these outcomes validate (i) a practical hardware–firmware stack for low-cost IAQ sensing in indoor factories, (ii) a deployable firmware strategy for network-efficient reporting, and (iii) an empirical inter-node consistency assessment using co-location and ANOVA. The approach facilitates scalable, accurate, and efficient IAQ surveillance for occupational safety programs and compliance workflows. Future work will extend to longer horizons, drift characterization, and integration with adaptive, event-driven analytics and calibration pipelines for robust industrial rollouts.
Co-Authors Abdul Chobir Aceng Sambas, Aceng Adiansah, Hamzah Agus Purnomo Agus Purnomo Aminarti, Dhiny Andhy Romdani, Andhy Andri Ulus Rahayu Anshary , Muhammad Adi Khairul Anshori, Rizal Aripin Azizah, Faridah Nafa Busaeri, Nundang Chobir, Abdul Chobir, Abdul Dwi Ilham Maulana Farhan Arista Fhadillah Fathurrohman, Fahmi Fhadillah, Farhan Arista Firdaus, Andre Taufik firmansyah maualana sugiartana nursuwars Firmansyah Maulana Fitri Handayani Gustaman, Rian Arie H Aripin Hazbullah, Rifaldi Hidayanti, Lilik Hidayat, Eka Wahyu Ifkar Usrah Ifkar Usrah Imam Taufiqurrahman Khairunisa, Lubna Jaudah Mochamad Herdi Nurzaman Muhammad Aris Risnandar Mulyadi, Zaki Nico Wahyu Ananto Nico Wahyu Ananto Nugraha, Asep Tri Mulyana Nundang Busaeri Nursuwars, Firmansyah Maulana Nurul Hiron Nurul Hiron, Nurul Oryza Sativa Paryono, Ervan Peni Cahyati, Peni Permana, Prama Pratama, Miftahul Huda Priyatna, Rendi Puspareni, Luh Desi Putri Apriliani Tri Santosa Ramdani, Anisa Suci Rahma Rendi Priyatna Rifansyah, Elpan Ahmad Risnandar, Muhammad Aris Rizki Anugrah, Rizki Saputra, Ahmad Ridwan Nur Shofa, Rahmi Nur Siti Badriah Sugiartana Nursuwars, Firmansyah Maulana Sutisna Sutisna Syarif Hidayatullah Usrah, Ifkar Wisnu, Iqbal Fawzi Yanyan Bahtiar Yuningsih, Sari Yusuf, Reyhan Ali Zaki Mulyadi