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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) Jurnal ELTIKOM : Jurnal Teknik Elektro, Teknologi Informasi dan Komputer Sinkron : Jurnal dan Penelitian Teknik Informatika Jurnal Vokasi Jurnal Teknik Indonesia Jurnal Rekayasa elektrika Enrichment: Journal of Multidisciplinary Research and Development Jurnal Polimesin Indonesian Journal of Electronics, Electromedical Engineering, and Medical Informatics Mathematics Education Journal Jurnal Pengabdian Rekayasa dan Wirausaha
Yuwaldi Away
Syiah Kuala University
Aerospace Engineering Humanities Automotive Engineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Health Professions Materials Science & Nanotechnology Mathematics Mechanical Engineering Social Sciences Transportation Other

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Analysis of Multi-Node QoS in Shrimp Pond Monitoring System with Fog Computing Anisah; Munadi, Rizal; Away, Yuwaldi; Bahri, Al; Novandri, Andri
Sinkron : jurnal dan penelitian teknik informatika Vol. 8 No. 1 (2024): Articles Research Volume 8 Issue 1, January 2024
Publisher : Politeknik Ganesha Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33395/sinkron.v9i1.13205

Abstract

Most of Indonesia’s territory consists of oceans, presenting a significant potential for developing the fisheries sector. Shrimp is among Indonesia’s flagship commodities with substantial export potential. Internationally, Indonesia holds the fourth position as the largest exporter of frozen shrimp globally. However, shrimp cultivation faces various challenges, including declining water quality due to factors such as water sources and weather, which can adversely affect harvest yields. To preempt potential failures, employing smart devices and technology in shrimp cultivation offers an effective and efficient solution for monitoring and management. This study aims to analyze water quality monitoring in ponds considering the speed of data transmission from end devices to fog using Quality of Service (QoS) parameters like delay/latency, throughput, and packet loss. Data transmission tests were conducted at data rates of 5 Mbps and 10 Mbps, with a bandwidth of 1500 Mbps. The study involves three sensors—water temperature, pH, and salinity—placed in shrimp ponds. Test results showed a decrease in throughput by 1.54% at the sensor node and 2.99% at the sink node when packet data delivery encountered barriers like obstacles. There was a 74.13% increase in latency when the delivery distance extended to 35 meters. The achievable delivery range with low latency was up to 10 meters with barriers and 25 meters without. Thus, latency and throughput values vary depending on the presence of barriers and transmission distance. Barriers tend to increase latency and decrease throughput.
Optimizing Attendance Data Security by Implementing Dynamic AES-128 Encryption Nuzula, Mukhsin; Away, Yuwaldi; Kahlil, Kahlil; Novandri, Andri
Sinkron : jurnal dan penelitian teknik informatika Vol. 8 No. 2 (2024): Article Research Volume 8 Issue 2, April 2024
Publisher : Politeknik Ganesha Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33395/sinkron.v8i2.13412

Abstract

The protection of data security is crucial, particularly when dealing with the transmission of sensitive information through communication networks. This article explores the Advanced Encryption Standard 128-bit (AES-128) algorithm as an effective and secure cryptographic solution. The paper proposes the dynamic development of the AES-128 cryptography method by implementing a dynamic key to enhance the security of employee attendance data. The dynamic key involves changing the encryption key every minute, providing an additional security layer and reducing the risk of decryption by unauthorized parties. Test results indicate that the dynamic AES-128 encryption algorithm demonstrates optimal performance. The consecutive encryption and decryption speeds for sending attendance data are 14656.78 bit/s and 21898.21 bit/s, respectively. The consistent duration of the encryption and decryption processes, at 6.66ms and 2.44ms, along with an Avalanche Effect rate of 50.73% and an Entropy of 6.67 bit/symbol, emphasizes the algorithm’s efficiency and stability. This research not only reinforces the desired level of security but also outperforms several previous studies. Analyzed performance data indicates that this method is not only efficient but also stable in maintaining data security, addressing significant variations in data length. Thus, the implementation of dynamic AES-128 cryptography in attendance systems provides a significant advantage in addressing information security challenges in the current digital era.
Real-Time Monitoring of Photovoltaic Panel Using Node-RED Raziah, Isyatur; Novandri, Andri; Away, Yuwaldi
Sinkron : jurnal dan penelitian teknik informatika Vol. 8 No. 3 (2024): Research Artikel Volume 8 Issue 3, July 2024
Publisher : Politeknik Ganesha Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33395/sinkron.v8i3.13929

Abstract

This research aims to design and implement an Internet of Things (IoT)-based monitoring system for Photovoltaic (PV) panels using Node-RED. The system can monitor critical parameters such as voltage, current, power, and the electrical energy produced by the PV panels in real-time. The data obtained from the PV panels is sent to a Node-RED server and visualized in the form of indicators and graphs on a dashboard. Statistical analysis calculates the daily average power and total energy produced. The results show that the proposed system can enhance monitoring efficiency and significantly benefit PV system maintenance and management. Users can quickly identify and address issues that may arise, such as panel performance degradation or system disruptions. Energy analysis and maintenance planning can be carried out by collecting historical data. This research supports the broader renewable energy development and provides an effective real-time PV system monitoring solution.
Development and design of the effect of adding a heatsink as a coolant on improvement output power on solar panels Jalil, Asri Muhammad; Away, Yuwaldi; Nasaruddin, Nasaruddin; Sara, Ira Devi; Jalil, Saifuddin Muhammad
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 15, No 3: September 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v15.i3.pp1671-1676

Abstract

This study discusses the use of solar energy as a clean and widely available alternative. The performance of solar panels is influenced by various factors including solar radiation, module, temperature, and distribution of the sunlight spectrum. Temperature issues in solar panels can be addressed through passive cooling, such as installing a heatsink. A passive cooling system is implemented by installing a heatsink with four layers of fins on the body panel of the solar module. The advantage of passive cooling with constellations is that it does not require additional energy from outside, while a large number of fins can achieve the best passive cooling constellation. Each heatsink utilizes eight fins with a total of three heatsinks, manufactured from aluminum. Vector values of wind speed, humidity, and temperature are studied through direct measurements. A 100 W polycrystalline solar module at a standard temperature of 25 ℃ produces an open circuit voltage of 22 +V.
Komparasi Performansi Antara Proportional Integral Derivative Controller (PID) Dan Fuzzy Logic Controller (FLC) Pada Penjejak Cahaya Dengan Tiga Sensor Gunawan, Doni; Away, Yuwaldi; Sara, Ira Devi; Novandri, Andri
Jurnal ELTIKOM : Jurnal Teknik Elektro, Teknologi Informasi dan Komputer Vol. 6 No. 2 (2022)
Publisher : P3M Politeknik Negeri Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31961/eltikom.v6i2.552

Abstract

The technology of light tracking monitors the solar panels to track the sun with full efficiency, and the solar panels can be upright to the sunlight in order to maximize the absorption of solar energy, so this system has a higher efficiency than non-tracking systems. This study aimed to obtain a controller that works accurately between the Proportional, Integral, and Derivative Controller (PID) and the Fuzzy Logic Controller (FLC) Algorithm by comparing the performance of the two algorithms in regulating the direction of the light tracker to detect the presence of sunlight. This solar prototype uses nine lamps as a simulation to determine the accuracy and precision of the angles of the two light trackers. The parameters compared in this test were the aspects of angular velocity and angle accuracy. The mean value of angular velocity obtained from the PID light tracking test results was 0.16 rad/s and the average linear velocity was 0.092 m/s whereas in the FLC light tracker, the average angular velocity value was 0.207 rad/s. Tests using a PID light tracker resulted in an X-axis accuracy of 45% and a Y-axis accuracy of 30%. The FLC light tracker, on the other hand, had an X-axis accuracy of 80% and a Y-axis accuracy of 30%.The precision value obtained by the PID light tracker on the X axis was 45% and the Y axis was 38%, while the precision value obtained by the FLC light tracker on the X axis was 71% and the Y axis was 33%. Based on the overall calculations, it can be concluded that the FLC light tracker has an increase in the speed value of 29% and an increase in the value of accuracy in the accuracy aspect by 35% and the precision aspect by 26% compared to the PID light tracker in previous studies.
Development of E-Learning based Remedial Videos on Fractions in Middle School Johar, Rahmah; Moulina, Aisyah Rayhan; Mailizar; Lestari, Mulia; Away, Yuwaldi
Mathematics Education Journal Vol. 18 No. 1 (2024): Jurnal Pendidikan Matematika
Publisher : Universitas Sriwijaya in collaboration with Indonesian Mathematical Society (IndoMS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/jpm.v18i1.pp97-112

Abstract

The Covid-19 pandemic has opened the gates to digital learning in mathematics education and increased the use of online learning. However, teachers still rare to use digital technology as feedback and final evaluation of students. Therefore, an e-learning based remedial video is needed to developed. The research aims to produce e-learning based remedial videos on fraction that meet the criteria of valid, practical and effective. This research is development research with ADDIE models namely analysis, design, development, implementation, and evaluation. The subjects of this research were class 8 students at junior high school from three school levels in Banda Aceh, Indonesia. Data was collected using video validation sheets, students’ response questionnaires, and remedial tests. The results show that e-learning based remedial videos was valid based on expert judgements, practical because students gave positive responses and effective because N-Gain of the percentage of students reached the Minimum Completeness Criteria (MCC) on diagnostic test and remedial test was 0.5 on the medium category.
IMPLEMENTASI DESAIN BARU BECAK LISTRIK PENGANGKUT SAMPAH UNTUK TRANSPORTASI RAMAH LINGKUNGAN DENGAN ENERGI TERBARUKAN Hasanuddin, Iskandar; Zulfan, Zulfan; Rahmawati, Sri; Sofyan, Sarwo Edhy; Ikramullah, Ikramullah; Tamlicha, Akram; Aulia, Udink; Syahriza, Syahriza; Darma, Yusria; Lulusi, Lulusi; Putra, Rudiansyah; Ahmadiar, Ahmadiar; Away, Yuwaldi; Herawati, Rama
Jurnal Vokasi Vol 7, No 3 (2023): November
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/vokasi.v7i3.4660

Abstract

Transportasi berkelanjutan dan ramah lingkungan menjadi perhatian utama dalam upaya mengurangi dampak lingkungan dan ketergantungan pada bahan bakar fosil. Pada kegiatan ini desain baru becak listrik pengangkut sampah  menggunakan sumber energi terbarukan untuk mengatasi tantangan transportasi dan pengelolaan sampah. becak ini akan diimplementasikan di daerah Aceh dan sekitarnya, terutama di sekitar kampus Universitas Syiah Kuala, Banda Aceh. Desain inovatif ini menggabungkan karakteristik tradisional becak dengan teknologi energi terbarukan guna menciptakan solusi yang relevan dengan lingkungan setempat. Dalam desain becak listrik baru ini, baterai lithium-ion diintegrasikan sebagai sumber utama, dengan kemampuan pengisian ulang melalui baterai yang dipasang pada struktur becak. Ini menghasilkan manfaat ganda dengan operasional yang lebih ekonomis dan berkontribusi pada lingkungan yang lebih bersih. Implementasi becak listrik ini akan memberikan dampak positif terhadap transportasi sampah di perkotaan Aceh. Selain mengurangi polusi udara dan kebisingan, becak ini akan memfasilitasi akses ke lokasi yang sulit dijangkau oleh kendaraan konvensional. Penting untuk dicatat bahwa kegiatan ini merupakan bagian dari upaya pengabdian kepada masyarakat yang dilakukan oleh Universitas Syiah Kuala. Selain memberikan solusi bagi transportasi dan pengelolaan sampah, desain becak listrik ini dapat menjadi model untuk pengembangan kendaraan listrik lainnya yang menggunakan energi terbarukan. Ini akan memberikan kontribusi penting dalam mengurangi dampak negatif perubahan iklim dan mengurangi ketergantungan pada sumber daya fosil di daerah tersebut. 
Analisis Manajemen Risiko Logistik pada Perusahaan Third Party Logistic (3pl) dengan Metode Risk Breakdown Structure dan Failure Mode And Effect Analysis (Fmea) (Studi Kasus : Drop Point J&T Express Lambaro Kafe dan Syiah Kuala) Azizah, Nadiatul; Dirhamsyah, M.; Husni, Husni; Away, Yuwaldi; Hasanuddin, Iskandar
Jurnal Teknik Indonesia Vol. 4 No. 2 (2025): Jurnal Teknik Indonesia
Publisher : Publica Scientific Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58860/jti.v4i2.624

Abstract

Setiap aktivitas perusahaan, khususnya dalam logistik, pasti mengandung risiko yang dapat memengaruhi kelancaran operasional. Penelitian ini mengkaji manajemen risiko dalam kegiatan pengiriman barang di Drop Point J&T Express Lambaro Kafe dan Syiah Kuala, dua lokasi perusahaan Third Party Logistics (3PL) yang menghadapi berbagai tantangan operasional. Tujuan penelitian ini adalah untuk mengidentifikasi, menganalisis, dan mengevaluasi risiko menggunakan metode Risk Breakdown Structure (RBS) dan Failure Mode and Effect Analysis (FMEA). Penelitian ini mengidentifikasi 25 risiko di Lambaro Kafe dan 27 risiko di Syiah Kuala, yang dikelompokkan ke dalam lima kategori risiko. Berdasarkan perhitungan Risk Priority Number (RPN), ditemukan risiko prioritas tertinggi di masing-masing lokasi. Di Lambaro Kafe, risiko utama meliputi kehilangan barang, pengembalian bermasalah, dan kerusakan peralatan. Sedangkan di Syiah Kuala, risiko prioritas adalah kerusakan barang, kesalahan alamat, dan kerusakan kendaraan. Implikasi dari penelitian ini adalah perlunya pengelolaan risiko yang lebih efektif dan penerapan tindakan penanganan yang lebih sistematis untuk meningkatkan operasional dan kepuasan pelanggan di kedua lokasi. Rekomendasi tindakan meliputi perbaikan manajemen inventaris, pelatihan pekerja, dan peningkatan teknologi informasi untuk meminimalisir dampak risiko yang teridentifikasi.
Authentication of an Indonesian ID Card with Simultaneous NFC and Face Recognition Chairullah, Chairullah; Away, Yuwaldi; Oktiana, Maulisa
Jurnal Rekayasa Elektrika Vol 21, No 2 (2025)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17529/jre.v21i2.41142

Abstract

Identity (ID) card forgery remains a significant issue in Indonesia, often leading to crimes such as identity theft and fraud. To address this challenge, this study proposes the development of an identity authentication system that integrates near field communication (NFC) and facial recognition based on K-nearest neighbors (KNN) algorithm. The primary objective of this system is to enhance the security of ID card (KTP) data and to ensure efficient and accurate access to services requiring identity verification. The system stores facial data and ID card information securely in Firebase, which serves both as a user authentication platform and a secure cloud-based storage solution. The application, developed using Flutter, incorporates facial recognition for biometric verification, while NFC is employed as an additional authentication layer to provide dual-factor verification and reinforce identity security. Experimental results demonstrate that the facial recognition based on KKN achieved an accuracy rate of 100% with a false acceptance rate (FAR) of 0%, indicating a highly reliable performance. These findings confirm that the integration of facial recognition and NFC technologies offers a robust and effective solution to combat ID card forgery, thereby improving the overall reliability and security of the population data authentication system in Indonesia.
Implementation of total quality management and importance-performance analysis for technical service optimization in a maintenance workshop : a case study of PT XYZ Khadafi, M; Away, Yuwaldi; Dirhamsyah, M
Jurnal Polimesin Vol 23, No 3 (2025): June
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i3.6860

Abstract

Customer satisfaction is a key factor of success in service-based industries and is equally important in technical service environments such as PT XYZ’s mechanical repair workshop, which provides civil works, welding, machinery, and valve maintenance services. This study aims to assess service quality and identify the primary factors influencing customer satisfaction, with the objective of formulating strategic improvements tailored to the workshop setting. A quantitative research approach was adopted, incorporating the SERVQUAL dimensions and the Total Quality Management (TQM) framework, while customer loyalty was measured using the Net Promoter Score (NPS). The study involved 93 internal respondents from various organizational units, with work experience ranging from less than five years to more than twenty years. Results indicate a high level of satisfaction, with a Net Promoter Score of 57.29% and an Internal Customer Satisfaction (ICS) Index of 86.9%. Multiple linear regression analysis showed that service quality and Total Quality Management collectively explained 84.3% of the variance in customer satisfaction. Importance and Performance Analysis (IPA) identified education and training, customer focus, and reliability as the top strategic improvement priorities. From an operational perspective, the most frequently requested services included pump shaft fabrication (item code 63-GA-6004, 30 hours), shaft sleeve fabrication (63-GA-6004, 16 hours), and shaft sleeve fabrication (56-GA-4002, initially 36 hours). Following the implementation of these improvements, the workshop achieved a 20 percent reduction in average processing time and completed 182 service activities within two months, significantly enhancing operational efficiency and customer satisfaction.
Co-Authors . Zulfan Ahmadiar, Ahmadiar ANISAH Azizah, Nadiatul Bahri, Al Basir, Nurlida Chairullah, Chairullah Cut Dewi, Cut Fahmi Fahmi Fathurrahman Fathurrahman Firdaus Firdaus Fitri Arnia Gunawan, Doni Hasanuddin, Iskandar Herawati, Rama Husni Husni Ikramullah, Ikramullah Ira Devi Sara Irwansyah Irwansyah Jalil, Asri Muhammad Kahlil, Kahlil Khadafi, M Leo, Hendrik lestari, mulia Lulusi Lulusi M. Dirhamsyah Mailizar Melinda Melinda Mina Rizky, Muharratul Mirza Rahmat, Muhammad Misbahuddin Misbahuddin Moulina, Aisyah Rayhan Muhammad Irhamsyah Muzawwir, Hendra Nasaruddin Nasaruddin Novandri, Andri Nuzula, Mukhsin Oktiana, Maulisa Rahmah Johar Ramdhana, Rizka Raziah, Isyatur Rizal Munadi Rudiansyah Putra Saifuddin Muhammad Jalil Sofyan, Sarwo Edhy Sri Rahmawati Syahriza, Syahriza Syifaul Huzni Tamlicha, Akram Udink Aulia Wardana, Surya Wong, W. K Yudha Nurdin Yunidar Yusria Darma