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Marchellyn, Ferryn
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Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Realsense Depth Camera Untuk Pengukuran Jarak Pada Mobil Autonom Roda Tiga Marchellyn, Ferryn; Suratman, Fiky Y; Satyawan, Arief Suryadi
eProceedings of Engineering Vol. 11 No. 5 (2024): Oktober 2024
Publisher : eProceedings of Engineering

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Abstract

Abstrak — Penggunaan kamera kedalaman menjadi krusialdalam teknologi kendaraan otonom untuk mengukur jarak objekdi sekitar kendaraan. Intel RealSense Depth Camera menjadisolusi unggul berkat teknologi sensor stereo yang memberikaninformasi kedalaman akurat. Penelitian ini mengeksplorasikemampuan kamera RealSense dalam mengukur jarak padamobil otonom beroda tiga, fokus pada evaluasi akurasi dalamberbagai kondisi operasional seperti kecepatan kendaraan, jarakobjek, dan pencahayaan.Metode menggunakan Depth Camera Intel RealSense D435iuntuk mendeteksi objek dalam jarak kurang dari 8 meter denganalgoritma Non-Max Suppression yang mengurangi tumpangtindih kotak pembatas dan memilih deteksi objek dengan nilaiconfidence score tertinggi. Implementasi melibatkanpenghubungan Depth Camera Intel RealSense D415i ke laptopuntuk pengolahan data jarak. Pengujian membandingkan hasilpengukuran kamera dengan meteran di area jalan sepanjang 8meter x 1.1 meter.Hasil menunjukkan variasi selisih antara jarak kamera danjarak sesungguhnya, dengan persentase kesalahan dihitungmenggunakan rumus. Kamera RealSense menunjukkan akurasiyang cukup baik, meskipun terdapat perbedaan yang disebabkanoleh toleransi pengukuran dan algoritma. Penelitian inimemberikan wawasan untuk pengembangan teknologi kamerakedalaman dalam kendaraan otonom masa depan, denganmempertimbangkan faktor- faktor yang mempengaruhi akurasipengukuran. Kata Kunci: kendaraan otonom, kamera kedalaman, RealSense,pengukuran jarak, akurasi, Non-Max Suppression, sensor stereo.
Design and Implementation of DC to DC Converter for Mobile Phone Charging Based on Microcontroller Muhammad, Athian Ali; Kurniawan, Ekki; Setiadi, Budi; Marchellyn, Ferryn
SAINSTEK Vol. 13 No. 2 (2025)
Publisher : Sekolah Tinggi Teknologi Pekanbaru

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35583/js.v13i2.383

Abstract

The increasing demand for portable and energy-efficient electronic devices has driven innovation in smartphone charging technology. Continuous smartphone operation requires an efficient power source, especially when AC power is unavailable. This study presents the design and implementation of a microcontroller-based DC-to-DC Buck Converter for smartphone charging using a 12V DC input. The system employs a MOSFET as a switching device controlled by PWM signals generated by an ATMega16 microcontroller. By adjusting the PWM duty cycle, the microcontroller regulates the output voltage to meet different smartphone charging requirements.The converter steps down the 12V DC input to a lower, stable voltage suitable for mobile phone charging while maintaining high efficiency. Essential circuit components, including the microcontroller, MOSFET, inductor, and capacitor, are arranged to ensure smooth voltage conversion with minimal ripple. Experimental results confirm that the designed converter effectively produces adjustable voltage levels compatible with various smartphones.Overall, this system demonstrates a reliable and energy-efficient solution for DC-powered smartphone charging, offering flexibility for use in portable and off-grid conditions.
Co-Authors Budi Setiadi, Budi Ekki Kurniawan Fiky Y. Suratman Muhammad, Athian Ali Satyawan, Arief Suryadi