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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) JTERA (Jurnal Teknologi Rekayasa) Martabe : Jurnal Pengabdian Kepada Masyarakat ABDIMAS SILIWANGI Journal of Information Technology and Computer Engineering Jurdimas (Jurnal Pengabdian Kepada Masyarakat) Royal GERVASI: Jurnal Pengabdian kepada Masyarakat Infotekmesin Journal of Applied Electrical Engineering Journal of Energy and Electrical Engineering (JEEE) REKA ELKOMIKA: Jurnal Pengabdian kepada Masyarakat E-JOINT (Electronica and Electrical Journal Of Innovation Technology) JITEL (Jurnal Ilmiah Telekomunikasi, Elektronika, dan Listrik Tenaga) Jurnal Pengabdian Masyarakat Ilmu Terapan (JPMIT) EPSILON: Journal of Electrical Engineering and Information Technology Electrician : Jurnal Rekayasa dan Teknologi Elektro International Journal of Advanced Science Computing and Engineering Jurnal Teknokes
Andri Ulus Rahayu
Universitas Siliwangi
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Library & Information Science Mathematics Mechanical Engineering Social Sciences Other

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Sistem Monitoring Perilaku Pengendara Mobil Berbasis Internet of Things Rahayu, Andri Ulus
JITCE (Journal of Information Technology and Computer Engineering) Vol. 5 No. 01 (2021)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jitce.5.01.18-24.2021

Abstract

This research is created as a system for a car rental service. The system has monitoring features allowing the car rental owner to monitor the engine condition. The monitoring is performed by using a web interface that could read data from OBD-II that sent by raspberry pi 2. The owner can also monitor the position of the car by using coordinates sent from a smartphone by utilizing the GPS feature. In addition, it also has a reporting feature that allows the owner to track the data history from OBD II about the engine rpm, speed, engine load & temperature. Moreover, the owners can identify the route that has been passed by their car. Likewise, this system provides a program that analyzes the car driver's behavior based on the determined rules. The analysis was conducted based on all data from OBD-II in the database server and all data of driving rules violation performed by the driver. The result is an assessment of the driver as a driving error rate. This study generated 173 data of which 9 were driving rules violations with a 5.20% driving error rate. The report can be obtained by selecting the time interval. It also downloadable and can be sent by e-mail.
Harmonic reduction in power grids: implementing a four-legged multilevel inverter as an active power filter using model predictive control Andang, Asep; Nursuwars, Firmansyah Maulana; Rahayu, Andri Ulus; Taufiqurrahman, Imam; Paryono, Ervan
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 16, No 2: June 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v16.i2.pp922-935

Abstract

This study explores the implementation of a five-level cascaded three-phase four-wire inverter as an active power filter to mitigate harmonics in power grids. Harmonic components in the load current are transformed and filtered to create a reference current, which serves as the foundation for designing the inverter’s switching pattern. The predicted current, generated through circuit modeling, is compared with the reference current using the model predictive control (MPC) method. The accuracy of this approach is evaluated using a cost function that measures the difference between the predicted and reference currents. Simulation results reveal that the application of the hybrid power filter can effectively suppress harmonics, reducing the total harmonic distortion (THD) to below 5%, thereby meeting power quality standards. Furthermore, it addresses load imbalances, ensuring that the phase currents at the source remain nearly equal. Additionally, the hybrid power filter significantly decreases the neutral current, reducing it to just one-tenth of its original value. While MPC has demonstrated its effectiveness in controlling power converters and multilevel inverters, its application to active power filters remains underexplored. This study investigates the potential of a four-legged multilevel inverter with MPC to enhance power quality by reducing harmonics in three-phase four wire systems.
An IoT-Based Framework for Real-Time Monitoring and Evaluation of Child Growth to Support Indonesia’s Stunting Reduction Initiative Andri Ulus Rahayu; Taufiqurrahman, Imam; Arie Gustaman, Rian; Fittur Farabi Sanaz
Jurnal Teknokes Vol. 18 No. 2 (2025): June
Publisher : Jurusan Teknik Elektromedik, Politeknik Kesehatan Kemenkes Surabaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Stunting remains a significant public health concern in Indonesia, leading to lifelong developmental and economic disadvantages. This study aims to address limitations in conventional child growth monitoring by developing and validating an IoT-based system that integrates ultrasonic and load cell sensors, an ESP32 microcontroller, RFID identification, and cloud-based data management. The system enables automated, real-time measurement and digital record-keeping, accessible via a user-friendly dashboard. Empirical validation was conducted on 35 children at local Integrated Health Service Post (Posyandu), showing high measurement accuracy (±0.53 cm for height, ±0.08 kg for weight), rapid average data transmission (2.05 seconds), and strong agreement with manual gold standards (p > 0.05). Usability evaluations indicated high satisfaction among health cadres, with streamlined workflows reducing time and staff requirements. The findings demonstrate that the proposed IoT-based system offers an effective, scalable, and economically viable solution for improving child growth monitoring and supporting stunting prevention programs in community health settings.
Co-Authors Abd Rahman Abdul Chobir Adzikri, Fikri Agustini Rodiah Machdi Annashr, Nissa Noor Arie Gustaman, Rian Aris Risnandar, Muhammad Asep andang Asep Andang, Asep Azis Muhajar Daniel Happy Putra Edvin Priatna Enov Tikupasang Ervan Paryono Faisal Candrasyah Hasibuan Faridah, Linda firmansyah maualana sugiartana nursuwars Firmansyah MSN Fittur Farabi Sanaz Hamdani, Yuda Muhammad Ifkar Ushar Ifkar Usrah Imam Taufiqurrahman Imam Taufiqurrahman Imam Taufiqurrahman Kiki Korneliani Moch Yuagga Permana Mochammad Fadillah Putra Muhammad Aris Risnandar Muhammad Aris Risnandar Muhammad Faiz Dzaki Chanafi Mutiarasari, Nurul Risti Nadya Aprilia Naim, Nidar Nadrotan Nundang Busaeri Nurdiansyah, Rian Nursuwars, Firmansyah Maulana Nurul Hiron Nurul Hiron, Nurul Paryono, Ervan Permana, Prama Ramdani R Rian Nurdiansyah Risnandar, M Aris Risnandar, Muhammad Aris Shopa, Rahmi Nur Stheven Erlangga Sanjaya Sulastri, Heni Sutisna Tejaleksono, Gunawan Wisnu, Iqbal Fawzi