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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 Pengabdian Mitra Masyarakat Jurnal Teknokes
Andri Ulus Rahayu
Universitas Siliwangi
Religion 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 Law, Crime, Criminology & Criminal Justice 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.
Kendali Kecepatan Motor BLDC dengan metode Mesin Sinkron dan Variasi PWM berbasis IoT Asep Andang; Rahayu, Andri Ulus; Imam Taufiqurrahman; Ervan Paryono
Infotekmesin Vol 16 No 1 (2025): Infotekmesin: Januari 2025
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v16i1.2417

Abstract

This study investigates speed control of brushless DC (BLDC) motors using a synchronous machine method and Pulse Width Modulation (PWM) variations based on IoT. A three-phase inverter controlled by an STM32 microcontroller was used to drive the BLDC motor. Speed control was implemented by adjusting the inverter frequency based on the synchronous machine principle, while PWM duty cycle was varied to regulate the input voltage. An IoT-based system using a smartphone app allowed remote speed settings. Experimental results showed that the synchronous machine method could effectively control BLDC motor speed, with frequency changes linearly affecting inverter output voltage. Varying PWM duty cycles impacted the voltage required to achieve target speeds, with higher duty cycles requiring lower voltages. The control system achieved speed accuracies within 3% of setpoints across different duty cycles. This approach demonstrates the feasibility of applying synchronous machine principles for BLDC motor control with IoT integration.
SISTEM MONITORING KARBON MONOKSIDA DENGAN METODE WIRELESS SENSOR NETWORK (WSN) BERBASIS INTERNET OF THINGS (IoT) nursuwars, firmansyah maulana sugiartana; Andri Ulus Rahayu; Ifkar Ushar; Stheven Erlangga Sanjaya
E-JOINT (Electronica and Electrical Journal Of Innovation Technology) Vol 4 No 1 (2023): E-JOINT, Juni 2023
Publisher : Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/e-joint.v4i1.1904

Abstract

Karbon monoksida merupakan salah satu jenis polutan udara yang berada di lingkungan sekitar kita. Jika karbon monoksida masuk ke dalam tubuh manusia, maka akan mengikat sel darah merah 200 hingga 250 kali lebih kuat dibandingkan dengan oksigen, sehingga menggantikan peran oksigen dan membentuk senyawa kimia Karboksi Hemoglobin (COHb). Sebagai upaya memperkecil resiko dari keracunan karbon monoksida maka dibutuhkan sistem yang dapat memonitor kadar karbon monoksida sedini dan seakurat mungkin. Semakin dini dan akurat monitoring yang dilakukan, maka dapat memperkecil resiko keracunan karbon monoksida. Maka dalam penelitian ini dibuat alat yang dapat memonitor kadar karbon monoksida dengan teknologi Internet of Things (IoT) yang di padukan dengan sistem Wireless Sensor Network (WSN). Berdasarkan hasil pengujian yang telah dilakukan di lingkungan Fakultas Ilmu Kesehatan, Gor Mashud dan Fakultas Teknik Gedung Baru Universitas Siliwangi di dapatkan kesimpulan rata-rata pengiriman data untuk skema pengujian pertama adalah sekitar 10,1 detik dan untuk skema pengujian kedua adalah sekitar 5,31 detik. Dengan jarak maksimal komunikasi dari Node 2 ke Node 1 adalah 34,5 Meter dan jarak maksimal komunikasi dari Node 1 ke Node Sink adalah 37,3 Meter. Dimana semakin kecil jangkauan area komunikasi dari WSN maka akan semakin cepat juga rata-rata pengiriman data yang dilakukan.
ANALISIS PELUANG EFISIENSI MELALUI KONSERVASI ENERGI PADA SISTEM TATA UDARA DI GEDUNG RUMAH SAKIT UMUM NURHAYATI GARUT Nadya Aprilia; Nundang Busaeri; Andri Ulus Rahayu
E-JOINT (Electronica and Electrical Journal Of Innovation Technology) Vol 4 No 1 (2023): E-JOINT, Juni 2023
Publisher : Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/e-joint.v4i1.1925

Abstract

Penelitian membahas tentang konservasi energi pada sistem tata udara untuk meningkatkan efisiensi penggunaan energi listrik pada gedung karena penggunaan energi listrik pada gedung Rumah Sakit Umum Nurhayati 75% digunakan pada sistem tata udara. Tujuan penelitian ini adalah menganalisis konsumsi energi untuk mendapatkan penghematan energi pada sistem tata udara agar tercapainya konsumsi energi yang lebih efisien. Metode yang dilakukan pada penelitian ini adalah konservasi energi dengan audit energi dilakukan perhitungan IKE, dan peluang upaya penghematan energi pada sistem tata udara. Hasil yang diperoleh pada penelitian ini adalah nilai intensitas konsumsi energi (IKE) pada Rumah Sakit Umum Nurhayati untuk bangunan non AC sebesar 28,68 kWh/m2/tahun termasuk kategori “efisien” sedangkan bangunan ber AC termasuk kriteria “agak boros” yaitu sebesar 183,16 kWh/m2/tahun. Besarnya konsumsi energi sistem tata sebesar 470801 kWh/tahun dari total penggunaan energi pada gedung. Peluang penghematan energi yang direkomendasikan dengan hasil paling efisien adalah menggunakan jenis AC inverter hemat energi dan didapatkan penghematan sebesar 209244,2 kWh/tahun atau 44% per tahun, dan nilai IKE setelah penghematan menjadi 101,7 kWh/m2/tahun menjadi kategori “efisien” dengan payback period selama 1 tahun 8 bulan dari penghematan yang dilakukan.
Desain Kendali Kecepatan Motor DC Pada Mobile Robot Mecanum Wheels Imam Taufiqurrahman; Andri ulus Rahayu; Moch Yuagga Permana; Ramdani R
E-JOINT (Electronica and Electrical Journal Of Innovation Technology) Vol 5 No 2 (2024): E-JOINT, Desember 2024
Publisher : Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/e-joint.v5i2.2571

Abstract

In an era of rapid technological development, the challenges facing the industrial sector in terms of automation continue to increase. Robotics is now present as one of the solutions and continues to be the focus of various studies. Mobile robots, with different numbers and types of wheels, are one of the types that are being widely researched to meet automation needs. One innovation that is attracting attention is the use of mecanum wheels, which provide omnidirectional motion capabilities that are far superior to conventional wheels. This research develops a control system for the DC motor used in the mecanum wheel mobile robot. This control design aims to provide precision in controlling the speed and direction of the robot's motion. By applying the PID (Proportional-Integral-Derivative) control technique, the system is able to optimally regulate the speed of each DC motor on all four wheels, allowing the robot to move smoothly in all directions. This research produces a PID controlled DC motor with a rise time of less than 15 seconds and PID parameters of Kp = 10, Ki = 0.5 and Kd = 2. The generated parameters can be used to control the speed of DC motors on mobile robots with mecanum wheels.
Identifikasi Persediaan Makanan di dalam Lemari Pendingin Berbasis Raspberry Pi dan Deep Learning Faisal Candrasyah Hasibuan; Andri Ulus Rahayu
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 16 No. 1 (2022)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

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

Abstract

Penerapan Lemari Sterilisasi Teknologi Ozon Dan Uvc Untuk Gugus Tugas Covid Di Puskesmas Salawu Kabupaten Tasikmalaya Priatna, Edvin; Hiron, Nurul; Naim, Nidar Nadrotan; Rahman, Abd; Annashr, Nissa Noor; Rahayu, Andri Ulus
Jurdimas (Jurnal Pengabdian Kepada Masyarakat) Royal Vol. 7 No. 3 (2024): Juli 2024
Publisher : STMIK Royal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33330/jurdimas.v7i3.3265

Abstract

Officers' readiness to prevent the spread of COVID-19 through document exchange is a problem in the community. This article discusses how the social engineering of COVID-19 cluster officers and Salawu Health Center officers in Tasikmalaya Regency in receiving and implementing document sterilization cabinet technology to suppress the transmission of the COVID-19 virus through document exchange. The use of ozone and UVC as sterilization media is beneficial but can negatively impact humans in the long term. Therefore education is needed for partners to avoid these negative impacts. This service activity method is partner situation analysis, pre-test, partner education, post-test, and conclusion. The result of this service is that partners have received document sterilization cabinets and UVC as room sterilizers. The results of measuring partner knowledge before and after participating in webinar activities using pre-test and post-test instruments, showed an increase in knowledge, skills and awareness by partners regarding the use of UVC and Ozone on average 83% from the initial condition of not understanding to understanding and skill.    Keywords: covid-19; ozone; uvc; health community center  Abstrak: Kesiapan petugas dalam mencegah penyebaran COVID-19 melalui pertukaran dokumen menjadi masalah di masyarakat. Artikel ini membahas tentang bagaimana rekayasa sosial pada petugas Gugus COVID-19  dan petugas Puskesmas Salawu di Kabupaten Tasikmalaya dalam penerima dan implementasi teknologi lemari sterilisasi dokumen guna menekan penularan virus COVID-19 melalui pertukaran dokumen. Penggunaan ozon dan UVC sebagai media sterilisasi sangat efektif, tetapi dapat menghasilkan dampak negatif dalam jangka Panjang, oleh karena itu diperlukan edukasi kepada mitra agar terhindar dari dampak negatif tersebut. Metode pada kegiatan pengabdian ini adalah analisis situasi mitra, Pre-test, edukasi mitra, post-test dan kesimpulan. Hasil dari pelaksanaan pengabdian ini adalah mitra telah menerima lemari sterilisasi dokumen dan UVC sebagai sterilisasi ruangan. Hasil pengukuran terhadap pengetahuan mitra sebelum dan setelah mengikuti kegiatan webinar menggunakan instrumen pre-test dan post-test, menunjukkan terjadinya peningkatan pengetahuan, keterampilan dan kewaspadaan oleh mitra terkait penggunaan UVC dan Ozon rata-rata 83% dari kondisi awal tidak memahami menjadi paham dan terampil.Kata kunci: covid-19; ozone; uvc; puskesmas
OPTIMALISASI LAHAN PERIKANAN DENGAN METODE BIOFLOK DI DESA SUKAMULYA KABUPATEN CIAMIS Taufiqurrahman, Imam; Rahayu, Andri Ulus; Manik, Visi Tinta
Jurnal Pengabdian Mitra Masyarakat Vol 5, No 1 (2025): Edisi September
Publisher : Universitas Islam Sumatear Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/jurpammas.v5i1.12025

Abstract

Indonesia merupakan penghasil budidaya ikan terbesar saat ini, berdasarkan UN FAO pada tahun 2016, indonesia menduduki peringkat kedua dengan penghasilan 22,2 juta ton ikan setelah cina. Produksi budidaya tambak air tawar meningkat dari 1.601 ton pada tahun 2001 menjadi 526.832 ton pada tahun 2020, tumbuh pada tingkat tahunan rata-rata 334,50 persen. Provinsi Jawa Barat merupakan budidaya ikan air tawar yang mapan, termasuk Kabupaten Ciamis menjadi dengan jumlah produksi sebesar 51.626 ton. Salah satunya Desa Sukamulya, Kecamatan Cihaurbeuti adalah potensi budidaya dibidaya perikanan. Kelompok tani yang bergerak di bidang budidaya ikan tawar yang bertugas untuk mewadahi para pelaku budidaya ikan di Dusun Citengah yaitu Kelompok Tani Berkah Mulya (KTBM). Setiap anggota kelompok memiliki kolam dengan ukuran 100 m2 hingga 450 m2 dengan sistem pengairan secara seri. Selain itu, dilakukan pelatihan dan pendampingan secara teknis dalam budidaya ikan dengan penggunaan metode ini serta memberikan pelatihan dan pendampingan manajemen usaha dan pemasaran digital. Penerapan program ini pengetahuan mitra meningkatan sebesar 75,3% anggota mitra mampu memahami dan mengoperasikan metode bioflok untuk budidaya ikan dengan berbasis teknologi IoT. Pada aspek produksi, pengetahuan dan manajemen usaha serta pemasaran digital mitra berhasil meningkatkan pendapatan sebesar 57% disebabkan oleh perangkat budidaya ikan sistem bioflok berbasis IoT.
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 Chobir, Abdul 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 Kiki Korneliani Moch Yuagga Permana Mochammad Fadillah Putra Muhammad Aris Risnandar Muhammad Aris Risnandar Muhammad Faiz Dzaki Chanafi Mutiarasari, Nurul Risti Nadya Aprilia Nadya Aprilia Naim, Nidar Nadrotan Nundang Busaeri 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 Usrah, Ifkar Visi Tinta Manik Wisnu, Iqbal Fawzi