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All Journal International Journal of Electrical and Computer Engineering Majalah Ilmiah Teknologi Elektro Jurnal Teknik Elektro Edu Elektrika Journal Jurnal Elektronika dan Telekomunikasi
Salim, Nur Azis
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Computer Science & IT Education Electrical & Electronics Engineering Engineering

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Performance Evaluation of Balancing Bicopter using P, PI, and PID Controller Apriaskar, Esa; Fahmizal, Fahmizal; Salim, Nur Azis; Prastiyanto, Dhidik
Jurnal Teknik Elektro Vol 11, No 2 (2019): Jurnal Teknik Elektro
Publisher : Jurusan Teknik Elektro, Fakultas Teknik, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jte.v11i2.23032

Abstract

Due to potential features of unmanned aerial vehicles for society, the development of bicopter has started to increase. This paper contributes to the development by presenting a performance evaluation of balancing bicopter control in roll attitude. It aims to determine the best controller structure for the balancing bicopter. The controller types evaluated are based on Ziegler-Nichols tuning method; they are proportional (P), proportional-integral (PI), and proportional-integral-derivative (PID) controllers. Root locus plot of the closed-loop balancing bicopter system is used to decide the tuning approach. This work considers a difference in pulse-width-modulation (PWM) signal between the left and right rotors as the signal control and bicopter angle in roll movement as the output. Parameters tuned by the method are Kp, Ti, and Td which is based on the ideal PID structure. The performance test utilizes rising time, settling time, maximum overshoot, and steady-state error to determine the most preferred controller. The result shows that PI-controller has the best performance among the other candidates, especially in maximum overshoot and settling time. It reaches 8.34 seconds in settling time and 3.71% in maximum overshoot. Despite not being the best in rising time and resembling PID-controller performances in steady-state error criteria, PI-controller remains the most preferred structure considering the closeness of the response to the desired value.
Prototype Sistem Informasi Pelayanan Akademik Terhadap Keluhan Mahasiswa Berbasis Web Salim, Nur Azis; Putri, Rahma Cahyani; Oktavariza, Feri
Edu Elektrika Journal Vol 9 No 2 (2020): Edu Elektrika Journal
Publisher : Electrical Engineering, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/eej.v9i2.42806

Abstract

Peran sistem informasi akademik dalam dunia pendidikan sangatlah penting terutama pada pengolahan data-data dan kegiatan-kegiatan akademik maupun non-akademik. Teknologi informasi menjadi suatu kebutuhan mutlak dalam menciptakan sistem informasi yang bermanfaat bagi kebutuhan pelayanan akademik di kampus. Pelayanan yang cepat dan transparan dalam dunia pendidikan adalah syarat mutlak bagi terbentuknya kampus yang unggul dan memiliki nilai jual yang tinggi. Saat ini masih banyak kampus yang belum memanfaatkan teknologi sebagai sumber infomasi untuk meningkatkan pelayanan terhadap mahasiswa dan masih menggunakan metode konvensional. Penggunaan dan pemanfaatan teknologi ini memungkinkan kemudahan bagi mahasiswa dalam mengakses informasi dan menyampaikan segala keluhan yang ada tanpa batasan ruang dan waktu. Untuk menanggulangi permasalahan yang dihadapi bagian akademik dalam menangani segala macam jenis keluhan dari mahasiswa yang cukup banyak, maka diperlukan sebuah sistem informasi yang baik, mudah diakses, dan transaparan. Pelayanan akademik berbasis web menjadi salah satu pilihan untuk memberikan kemudahan dalam mengelola, menfasilitasi dan menampung masalah mahasiswa yang ada terhadap kampus yang dapat diakses menggunakan telepon genggam maupun komputer dengan koneksi internet. Pada sistem ini akan dirancang sistem informasi akademik berbasis web yang dapat mengakomodir keluhan mahasiswa, baik berupa layanan akademik, administrasi maupun saran dan prasarana. Dengan adanya penggunaan sistem tersebut, diharapkan pelayanan akademik di dalam kampus bisa lebih efektif, efisien, dan transparan.
Prototype Sistem Informasi Pelayanan Akademik Terhadap Keluhan Mahasiswa Berbasis Web Salim, Nur Azis; Putri, Rahma Cahyani; Oktavariza, Feri
Edu Elektrika Journal Vol 9 No 2 (2020): Edu Elektrika Journal
Publisher : Electrical Engineering, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/eej.v9i2.42806

Abstract

Peran sistem informasi akademik dalam dunia pendidikan sangatlah penting terutama pada pengolahan data-data dan kegiatan-kegiatan akademik maupun non-akademik. Teknologi informasi menjadi suatu kebutuhan mutlak dalam menciptakan sistem informasi yang bermanfaat bagi kebutuhan pelayanan akademik di kampus. Pelayanan yang cepat dan transparan dalam dunia pendidikan adalah syarat mutlak bagi terbentuknya kampus yang unggul dan memiliki nilai jual yang tinggi. Saat ini masih banyak kampus yang belum memanfaatkan teknologi sebagai sumber infomasi untuk meningkatkan pelayanan terhadap mahasiswa dan masih menggunakan metode konvensional. Penggunaan dan pemanfaatan teknologi ini memungkinkan kemudahan bagi mahasiswa dalam mengakses informasi dan menyampaikan segala keluhan yang ada tanpa batasan ruang dan waktu. Untuk menanggulangi permasalahan yang dihadapi bagian akademik dalam menangani segala macam jenis keluhan dari mahasiswa yang cukup banyak, maka diperlukan sebuah sistem informasi yang baik, mudah diakses, dan transaparan. Pelayanan akademik berbasis web menjadi salah satu pilihan untuk memberikan kemudahan dalam mengelola, menfasilitasi dan menampung masalah mahasiswa yang ada terhadap kampus yang dapat diakses menggunakan telepon genggam maupun komputer dengan koneksi internet. Pada sistem ini akan dirancang sistem informasi akademik berbasis web yang dapat mengakomodir keluhan mahasiswa, baik berupa layanan akademik, administrasi maupun saran dan prasarana. Dengan adanya penggunaan sistem tersebut, diharapkan pelayanan akademik di dalam kampus bisa lebih efektif, efisien, dan transparan.
Implementasi Kendali Keseimbangan Gerak Two Wheels Self Balancing Robot Menggunakan Fuzzy Logic Fathoni, Khoirudin; Pratama, Ababil Panji; Salim, Nur Azis; Sulistyawan, Vera Noviana
Jurnal Teknik Elektro Vol 13, No 2 (2021): Jurnal Teknik Elektro
Publisher : Jurusan Teknik Elektro, Fakultas Teknik, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jte.v13i2.33414

Abstract

Self balancing robot is a two-wheeled robot that only has two fulcrums so that this robot is an unbalanced system. Therefore, a control system that can maintain the stability of the robot is needed so that the robot can keep in standing position. This study aims to design a self-balancing robot and its control system which improves the robot's performance against the maximum angle of disturbance that can be overcome. The control system used is based on fuzzy logic with 9 membership functions and 81 rules. The control system is applied to the ESP-32 microcontroller with the MPU-6050 sensor as a feedback position of the robot and DC motor as an actuator. Complementary filters are added to the MPU-6050 sensor readings to reduce noise to obtain better robotic tilt angle readings. The improvement of this research compared to previous research based on fuzzy is the addition of the number of membership functions from 7 to 9 and the embedding of a complementary filter on the MPU-6050 sensor output reading. The result shows that the designed self balancing robot which has dimensions of 10cm x 18cm x 14.5cm can cope with the maximum disturbance angle up to 17.5⁰.
Optimization of Electric Bus Scheduling Using Genetic Algorithm: A Case Study in Public Transport of UNNES Campus Area Salim, Nur Azis; Subiyanto, Subiyanto; Rachmat, Siva Khaaifina; Ekaputra, Muhammad Farrel
Jurnal Teknologi Elektro Vol 23 No 1 (2024): (Januari - Juni ) Majalah Ilmiah Teknologi Elektro
Publisher : Program Studi Magister Teknik Elektro Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/MITE.2024.v23i01.P02

Abstract

The transportation service system requires improvements to evolve into a smart and more efficient system. Passengers waiting at bus stops can create long queues, causing a lack of available shuttle bus capacity when arriving at the bus stop. This work proposes a genetic algorithm model to minimize passenger waiting time and schedule shuttle buses to stops with high capacity. The Genetic Algorithm works by searching for the optimal value to result in optimal waiting time by providing calling shuttle bus. After the method reaches the optimal solution, the simulation result will provide a minimum waiting time. In case studies of simulated design at either campus in Central Java, Indonesia. This method provides a simulated system shuttle bus on scheduling to raise a challenge in waiting time efficiency and passenger accumulation at campus transportation. The case studies of the application on passenger waiting time showcase the model's ability to improve transportation services in the unscheduled campus area. This system was designed to ensure that it was effective in addressing the transportation challenges faced by students and staff. Use the full potential of bus transportation in the campus area to ensure continuity between stops and city transportation. Therefore, this approach reduces waiting times and schedules to overcome challenges posed by passenger accumulation for structured campus transportation services. Keywords—Shuttle Bus; Genetic Algorithm; Campus Area; Minimize Waiting Time; Scheduling; Optimization.
Design of Brushless DC Motor Driver Based on Bootstrap Circuit Fathoni, Khoirudin; Apriaskar, Esa; Salim, Nur Azis; Sulistyawan, Vera Noviana; Satria, Rifki Lukman; Hidayat, Syahroni
Jurnal Elektronika dan Telekomunikasi Vol 23, No 2 (2023)
Publisher : National Research and Innovation Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jet.563

Abstract

Brushless DC (BLDC) motor is a three-phase motor that cannot work directly with DC current but requires electronic commutation to replace the brush function in DC motor. This paper aims to implement BLDC motor driver integration based on bootstrap circuit using Autodesk Eagle. The driver board consist of bootstrap circuit based on IR2110, MOSFETs, three voltage regulator, ESP32 microcontroller and ACS712 current sensor connection, logic level converter, and BLDC hall effect signal sensor conditioning. The research proposes bootstrap capacitor calculation based on charging/discharging capacitor principle and the minimum motor speed rotation. The implemented driver has 14x10 cm dimension tested to drive 24V/135W/6000rpm sensored BLDC motor using six steps commutation with pulse width modulation (PWM) inserted programmatically in ESP 32 to drive the high side MOSFET of the driver without AND gate circuit. The effect of pwm frequency and dutycycle variation to the speed and current of the motor is investigated. The results showed that the driver with both 12 V and 24 V voltage source and 68 μF bootstrap capacitor work optimally in 20 KHz PWM frequency both in open loop and closed loop speed control test. The motor reach 129 W for the largest power and 5250 rpm for the fastest speed in 24 V supply.
Android-based smart digital marketplace application on agricultural commodities using a new variant recommendation system Subiyanto, Subiyanto; Prajanti, Sucihatiningsih Dian Wisika; Salim, Nur Azis; Prabowo, Setya Budi Arif; Sutrisno, Deyndrawan; Anantyo, Andika; Anggriani, Dewi
International Journal of Electrical and Computer Engineering (IJECE) Vol 15, No 2: April 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v15i2.pp1968-1977

Abstract

In the marketing of agricultural products, addressing the challenges associated with extensive distribution chains is essential, as these directly affect sellers. Additionally, the vast array of available product options often overwhelms customers, complicating their efforts to identify and purchase items that align with their preferences. This work aims to develop a smart e-commerce application for agribusiness, specifically designed for agricultural products on the Android platform. The application integrates a recommendation system that utilizes geolocation-aware neural graph collaborative filtering (GA-NGCF), which facilitates product marketing for farmers and streamlines the product search and selection process for users based on personalized preferences. The development process encompassed various stages, from planning to rigorous testing. The application’s recommendation system, which implements GA-NGCF, operates based on three primary elements: the creation of a geolocation graph of user-item data, the integration of information between neighboring nodes, and the prediction of user preferences. The resulting smart agribusiness e-commerce application, enhanced by GA-NGCF, demonstrated marked improvements in recommendation accuracy and overall application performance during testing. Empirical results indicated substantial enhancements in recommendation metrics, with GA-NGCF achieving a recall of 0.34, a precision of 0.36, and normalized discounted cumulative gain of 0.37, thereby outperforming existing models.
Co-Authors Anantyo, Andika Anggriani, Dewi Dhidik Prastiyanto Ekaputra, Muhammad Farrel Esa Apriaskar Khoirudin Fathoni, Khoirudin Oktavariza, Feri Prabowo, Setya Budi Arif Pratama, Ababil Panji Putri, Rahma Cahyani Rachmat, Siva Khaaifina Satria, Rifki Lukman Sucihatiningsih Dian Wisika Prajanti Sulistyawan, Vera Noviana Sutrisno, Deyndrawan Syahroni Hidayat