Wijayanti, Wahyu (2025) Sistem Pengukuran Temperatur Non-Contact Pada Microcontroller Berbasis Image Processing. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Microcontroller banyak digunakan pada berbagai aplikasi IoT dan sistem tertanam yang beroperasi pada lingkungan tertutup dengan beban proses yang bervariasi. Kondisi tersebut dapat menyebabkan peningkatan temperatur yang mempengaruhi performa, stabilitas, dan umur komponen. Penelitian ini bertujuan untuk merancang sistem pengukuran temperatur non-contact untuk mengukur kondisi termal microcontroller secara realtime. Sistem yang dirancang menggunakan komponen Raspberry Pi 4B sebagai pengolah data, MLX90640 sebagai pengukur termal yang akan dibandingkan dengan Termogun, DHT11 sebagai pengukur temperatur dan kelembaban chamber, dan juga Waveshare 5inc sebagai display. Data temperatur 24x32 akan diolah menjadi heatmap dan di ekstraksi parameter Tmin, Tmax, dan Tavg pada ROI permukaan microcontroller. Terdapat 3 jenis microcontroller yang digunakan untuk pengujian yaitu ESP32-S3, Arduino Uno, dan juga STM32 yang akan diuji menggunakan variasi beban (stressing level) dan temperatur chamber. Hasil pengujian menunjukkan bahwa sistem mampu mendeteksi variasi temperatur microcontroller secara konsisten dan real-time. Perbandingan dengan termogun menunjukkan selisih pengukuran rata-rata sebesar 5,43°C dengan laju perubahan data sebesar 1-2 FPS. Dengan demikian sistem yang dibuat mampu melakukan pengukuran temperatur permukaan microcontroller secara non-kontak, perbandingan dengan termogun, serta evaluasi pengujian dan kinerja sistem.
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Microcontrollers are widely used in various IoT applications and embedded systems operating in enclosed environments with varying processing loads. These conditions can lead to temperature increases that affect component performance, stability, and lifespan. This research aims to design a non-contact temperature measurement system to monitor the thermal state of microcontrollers in real-time. The system utilizes a Raspberry Pi 4B for data processing, an MLX90640 sensor for thermal measurement (benchmarked against a thermal gun), a DHT11 sensor for monitoring chamber temperature and humidity, and a Waveshare 5-inch display. The 24x32 temperature data is processed into a heatmap, from which Tmin, Tmax, and Tavg parameters are extracted for the microcontroller surface's Region of Interest (ROI). Three types of microcontrollers—ESP32-S3, Arduino Uno, and STM32—were tested under varying processing loads (stress levels) and chamber temperatures. Test results demonstrate that the system consistently detects microcontroller temperature variations in real-time. Comparison with the thermal gun reveals an average measurement difference of 5.43°C, with a data update rate of 1–2 FPS. Thus, the developed system is capable of non-contact microcontroller surface temperature measurement, benchmarking against a thermal gun, and evaluating both testing procedures and system performance.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Termografi Inframerah, Infrared Thermography, Microcontroller, Image Processing, MLX90640 |
| Subjects: | Q Science > QC Physics > QC100.5 Measuring instruments (General) Q Science > QC Physics > QC271 Temperature measurements Q Science > QC Physics > QC457 Infrared technology. T Technology > T Technology (General) > T57.5 Data Processing T Technology > TA Engineering (General). Civil engineering (General) > TA1637 Image processing--Digital techniques. Image analysis--Data processing. T Technology > TA Engineering (General). Civil engineering (General) > TA593.35 Instruments, cameras, etc. |
| Divisions: | Faculty of Vocational > Instrumentation Engineering |
| Depositing User: | Wahyu Wijayanti |
| Date Deposited: | 31 Jul 2026 06:32 |
| Last Modified: | 31 Jul 2026 06:32 |
| URI: | http://repository.its.ac.id/id/eprint/140827 |
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