AIR QUALITY MONITORING AND CONTROL SYSTEM BASED ON WIRELESS SENSOR NETWORK (WSN)

Intipada, Steven Fitra (2024) AIR QUALITY MONITORING AND CONTROL SYSTEM BASED ON WIRELESS SENSOR NETWORK (WSN). Tugas Akhir thesis, University of Technology.

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Abstract

ABSTRACT This study aims to design an air quality monitoring and control system based on a wireless sensor network (WSN). The system uses a DHT11 sensor to monitor temperature and humidity, and an MQ-135 sensor to measure air quality in Parts Per Million (PPM). Sensor data is sent wirelessly via the NRF24L01 PA LNA module and displayed in real-time on the LCD and the IoT Thingsboard platform. Test results show that the DHT11 sensor has an error margin of 0%-7% compared to reference thermometers and hygrometers, and provides consistent data. The MQ-135 sensor accurately detects hazardous gases with PPM values of 50-500, is sensitive to changes in gas concentration, and provides fast readings. Communication testing of the NRF24L01 module shows stability up to 50 meters, with a data error rate of 2% at 10 meters and 10% at 50 meters. The system also shows good performance in various environmental conditions with an average response time of 2 seconds. Overall, this system meets the research objectives, offering a reliable and easy-to-use air quality monitoring solution, and is flexible in placement and integration with IoT platforms for broader monitoring. This system is useful for applications in urban, industrial, and household environments. Keywords: Air Quality Monitoring System, Wireless Sensor Network, DHT11 Sensor, MQ-135 Sensor, PPM, NRF24L01 PA LNA, Internet of things, Thingsboard.

Item Type: Thesis (Skripsi, Tugas Akhir or Kerja Praktek) (Tugas Akhir)
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Fakultas Sains Dan Teknologi > S1 Teknik Elektro
Depositing User: Kaprodi Teknik Elektro
Date Deposited: 28 Nov 2024 02:56
Last Modified: 28 Nov 2024 02:56
URI: http://eprints.uty.ac.id/id/eprint/16720

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