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All Journal JIKO (Jurnal Informatika dan Komputer)
Gogor C. Setyawan
Universitas Kristen Imanuel Yogjakarta Indonesia
Computer Science & IT

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ROBOT PENGIKUT MANUSIA BERBASIS FUSI SENSOR TERMAL AMG8833 DAN MLX90614 Mekedius Ilsenmus Jiro; Gogor C. Setyawan; Heani Budiati
JURNAL INFORMATIKA DAN KOMPUTER Vol 10, No 2 (2026): Juni 2026
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat - Universitas Teknologi Digital Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26798/jiko.v10i2.2698

Abstract

Developing a reliable person-following robot in low-light and high-temperature environments remains challenging because conventional vision-based sensors often experience unstable detection. This study proposes a thermal sensor fusion system using a GY-AMG8833 thermal sensor (8x8 pixels) for directional tracking and an MLX90614 infrared sensor for human body temperature validation. The robot is controlled by an ESP32 microcontroller implementing a Weighted Centroid algorithm to determine the target position based on heat distribution. To overcome the sensitivity of low-cost thermal sensors to environmental noise, especially when ambient temperature exceeds 31 degrees C, the proposed method applies a dynamic threshold offset of 1.5 degrees C above ambient temperature. In addition, a heat-area-based noise filter is implemented, where the robot automatically stops when the detected heat area exceeds 60 pixels, indicating non-target objects such as walls or reflective surfaces. Experimental results in air-conditioned and non-air-conditioned environments show that the proposed system improves tracking accuracy by up to 70%, reduces the false positive rate from 80% to 0%, and prevents collisions with static heat-emitting objects. These results demonstrate that the proposed approach provides safer, more stable, and more reliable autonomous robot navigation.
Co-Authors Heani Budiati Mekedius Ilsenmus Jiro