ZAKI, MUHAMMAD (2025) PERANCANGAN SISTEM PEMANTAUAN POLUSI UDARA BERBASIS INTERNET OF THINGS MENGGUNAKAN APLIKASI WEBSITE. S1 thesis, Universitas Mercu Buana Jakarta.
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Abstract
In dealing with air pollution problems, this study was made to design an Internet of Things (IoT)-based air pollution monitoring system that aims to provide real-time information about air quality to the public. By utilizing Internet of Things (IoT)-based technology and web applications, the system is designed to detect harmful gases such as carbon dioxide (CO₂), carbon monoxide (CO), and LPG in real-time, and provide early warnings so that people can be more aware of the risks of air pollution. The system development is done by creating a prototype that includes the design of hardware, software, and the integration of both. The system utilizes MHZ19B, MQ-7, and MQ-2 sensors to detect carbon dioxide (CO₂), carbon monoxide (CO), and liquefied petroleum gas (LPG). The data collected will be processed by the NodeMCU ESP8266 microcontroller, then stored on a database server and presented through a real-time website interface in the form of graphs and reports. In addition, the calculation results will also be displayed on an OLED screen and provide early warning through a buzzer if gas levels exceed normal limits. The results of the study show that the system can detect changes in CO₂, CO, and LPG gas levels in the air with a difference in CO₂ sensor levels on the device and CO₂ meter of 10.7% in an open room, 2.1% against cigarette smoke, 1% against paper burning smoke, 0.93% against cardboard burning smoke and an average total difference of 4.03% and can display data through real-time website applications with a time delay of 1-3 seconds in sending data to the database server. Keywords: Air Pollution, Internet of Things, MH-Z19B, MQ-2, MQ-7, NodeMCU ESP8266, OLED, Database, website Dalam menghadapi masalah polusi udara, studi ini dibuat untuk merancang sistem pemantauan polusi udara berbasis Internet of Things (IoT) yang bertujuan untuk memberikan informasi real-time tentang kualitas udara kepada masyarakat. Dengan memanfaatkan teknologi berbasis Internet of Things (IoT) dan aplikasi website, sistem ini dirancang untuk mendeteksi gas berbahaya seperti karbon dioksida (CO₂), karbon monoksida (CO), dan LPG secara real-time, serta memberikan peringatan dini agar masyarakat dapat lebih waspada terhadap risiko polusi udara. Pengembangan sistem dilakukan dengan membuat prototipe yang mencakup desain hardware, software, dan integrasi keduanya. Sistem ini memanfaatkan sensor MH-Z19B, MQ-7, dan MQ-2 untuk mendeteksi gas karbon dioksida (CO₂), karbon monoksida (CO), serta gas minyak bumi cair (LPG). Data yang dikumpulkan akan diproses oleh mikrokontroler NodeMCU ESP8266, kemudian disimpan di server database dan disajikan melalui aplikasi antarmuka website secara real-time dalam bentuk grafik serta laporan. Selain itu, hasil penghitungan juga akan ditampilkan pada sebuah layar OLED dan memberikan peringatan dini melalui buzzer jika kadar gas melebihi batas normal. Hasil dari penelitian menunjukkan bahwa sistem dapat mendeteksi perubahan kadar gas CO₂, CO, dan LPG di udara dengan selisih kadar sensor CO₂ pada alat dan CO₂ meter sebesar 10,7% pada ruangan terbuka, 2,1% terhadap asap rokok sebesar, 1% terhadap asap pembakaran kertas, 0,93% terhadap asap pembakaran kardus dan rata-rata selisih total sebesar 4,03% serta dapat menampilkan data melalu aplikasi website secara real-time dengan delay waktu kisaran 1-3 detik pada pengiriman data ke server database. Kata Kunci: Polusi udara, Internet of Things, MH-Z19B, MQ-2, MQ-7, NodeMCU ESP8266, OLED, Database, website.
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