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Sistem Monitoring dan Logging pada Oxygen Concentrator Berbasis Node-RED dengan Protokol MQTT Keyasa Abimanyu Nugroho; Dian Figana
Jurnal Arus Elektro Indonesia Vol 9 No 1 (2023)
Publisher : Fakultas Teknik, Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jaei.v9i1.33652

Abstract

Covid-19 is a spreading disease caused by SARS-CoV-2, a type of coronavirus. Covid-19 first case was reported from Wuhan, China on 31 December 2019. The virus spread rapidly to the other countries all over the world. The virus spread from an infected person’s mouth or nose in small liquid particles when they cough or sneezing. Oxygen supply in Indonesia is rare because everybody’s panick to buy their own oxygen tank and refill the supply. With PSA technology, Oxygen Concentrator that is going to be made will have an Oxygen Concentration output more than 90%. This sistem is using VPS that has its own public IP that can be accessed by internet. Monitoring and Logging system is made using flow on Node-RED that will monitor data from PLC, Oxygen Concentration and Flow. PLC Data that is read-able by Node-RED LocalHost will be published to broker using MQTT. The othe Node-RED VPS will subscribed to the broker with a specific topic and get that data. Based on the tests that is done, the monitoring and logging system is working, it shows the data on a gauge widget, chart, and level. The data that is sent through broker will be stored in a database. The data will be called by query if the user wanted to see the logger data based on the date. The maximum value of the measured Oxygen Concentration is 96.18%.
Sistem Pengendalian Level dan Aliran Air Menggunakan Metode Cascade PID pada Modul Latih RT 512 dan RT 522 Galih Tejo Bowo Laksono; Dian Figana
Jurnal Sosial Teknologi Vol. 6 No. 7 (2026): Jurnal Sosial dan Teknologi
Publisher : CV. Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/jurnalsostech.v6i7.32935

Abstract

Penelitian ini bertujuan untuk menganalisis kinerja sistem pengendalian level dan aliran air pada Modul Latih RT 512 dan RT 522 menggunakan metode kontrol Cascade PID. Modul latih yang digunakan merupakan perangkat eksperimen sistem kontrol yang terdiri dari plant pengendali level (RT 512) dan plant pengendali aliran (RT 522) yang saling terhubung secara hidrolik. Penelitian dilakukan melalui pengambilan data open loop untuk memperoleh kurva respon plant, kemudian pemodelan matematis dalam bentuk fungsi alih First Order Plus Dead Time (FOPDT), serta perhitungan parameter tuning PID menggunakan metode Cohen-Coon. Parameter PID yang diperoleh untuk loop primer (level) adalah Kp = 0.2196, Ki = 0.0089, dan Kd = 0.8231, sedangkan untuk loop sekunder (aliran) adalah Kp = 0.0861, Ki = 0.0871, dan Kd = 0.1702. Pengujian closed loop dilakukan pada set point 40 cm dengan membandingkan kinerja kontroler single loop PID dan Cascade PID. Hasil penelitian menunjukkan bahwa kontroler Cascade PID menghasilkan respon transien yang lebih cepat dengan rise time 140.5 detik, delay time 75.5 detik, settling time 432.975 detik, dan error steady state 2.5%, dibandingkan single loop PID yang memiliki rise time 271.5 detik, delay time 127.5 detik, settling time 722.464 detik, dan error steady state 5%. Meskipun overshoot pada Cascade PID lebih tinggi (17.5%) dibandingkan single loop (5%), nilai tersebut masih dalam batas toleransi sistem. Analisis kestabilan menggunakan metode Routh-Hurwitz memastikan bahwa sistem closed loop dalam kondisi stabil. Penelitian ini membuktikan bahwa metode Cascade PID dengan tuning Cohen-Coon efektif meningkatkan kinerja pengendalian level dan aliran pada sistem dengan dinamika yang berbeda, serta memberikan kontribusi praktis bagi pengembangan sistem kontrol di industri proses.
Co-Authors Galih Tejo Bowo Laksono Keyasa Abimanyu Nugroho